Purpose to create gemetes
Answers
Answer:
Gametes are cells used during sexual reproduction to produce a new individual organism or zygote.
Explanation:
This is helpful if male ejaculation is not possible, or insufficient.
Related Questions
This peripheral blood smear is from a 42-year-old man with a past medical history significant for hypertension who presents with progressive fatigue and weakness over the past month. He indicates generalized abdominal fullness. Laboratory data include: WBC = 129.7 x 10^3/uL , RBC = 4.43 x 10^6/uL , HGB = 13.0 g/dL, MCV = 91 fL, RDW = 15%, and PLT = 309 x 10^3/uL. Identify the following cells and answer the accompanying questions.
1.What cytochemical stain might be done on the peripheral blood smear to aid in diagnosis?
2.What would you expect the results of the special stain to be ?
3.Explain your answer Calculate the Mean corpuscular Hemoglobin Concentration
4.Calculate the Hct What is this disease?
5.Name the chromosomes associated with this disease. Explain the genetic translocation associated with this disease
Answers
1. A cytochemical stain that might be done on the peripheral blood smear to aid in diagnosis is a myeloperoxidase (MPO) stain. 2. If a myeloperoxidase (MPO) stain is performed, the results would be negative. 3. The mean corpuscular hemoglobin concentration (MCHC) cannot be determined with the given data since the hematocrit (Hct) value is not provided.
1. A cytochemical stain that might be done on the peripheral blood smear to aid in diagnosis is a myeloperoxidase (MPO) stain.
2. In this case, if a myeloperoxidase (MPO) stain is performed, the results would be negative.
3. The mean corpuscular hemoglobin concentration (MCHC) is calculated by dividing the hemoglobin concentration (HGB) by the hematocrit (Hct) and multiplying by 100. However, the information provided in the question does not include the Hct value, which is necessary for calculating the MCHC. Therefore, it is not possible to determine the MCHC with the given data.
4. The hematocrit (Hct) can be calculated by multiplying the red blood cell count (RBC) by the mean corpuscular volume (MCV) and dividing by 10. In this case, the RBC count is 4.43 x 10^6/uL and the MCV is 91 fL. Using the formula: Hct = (4.43 x 10^6) x (91) / 10, the calculated Hct is 40.273%.
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PLS help me!!!!
Finding the Epicenter
Find the length of the radius of each circle. To calculate the radius, divide the distance from the epicenter by 640 km.
Answers
Seismograph records were obtained from an earthquake in Central America. Using the information in the table, locate the epicenter on the map. You will need a compass and ruler. On this map, 1 cm is equal to 1,000 km.
a researcher is preparing to insert a human gene of interest into a bacterial plasmid in order to clone the human gene. she has genetically engineered the plasmid to carry a gene amp r , which confers resistance to the antibiotic ampicillin. she will include ampicillin in the plating medium when she grows the recombinant bacteria. why has she engineered the plasmid to include an antibiotic resistance gene? choose the best answer. a circular bacterial plasmid. this plasmid contains an ampr gene, a bacterial plasmid, and a lacz gene. the ampr gene is a gene for ampicillin resistance. the bacterial plasmid is a cloning vector. the lacz gene is a gene for lactose breakdown. the lac z gene has a restriction site. a researcher is preparing to insert a human gene of interest into a bacterial plasmid in order to clone the human gene. she has genetically engineered the plasmid to carry a gene amp r , which confers resistance to the antibiotic ampicillin. she will include ampicillin in the plating medium when she grows the recombinant bacteria. why has she engineered the plasmid to include an antibiotic resistance gene? choose the best answer. recombinant bacteria that have taken up the plasmid can be recognized because the antibiotic resistance gene produces a blue color. recombinant bacteria that have taken up the plasmid are vulnerable to infection and require antibiotic resistance. recombinant bacteria that have taken up the plasmid can be recognized because they are able to survive in the presence of ampicillin.
Answers
A researcher is preparing to insert a human gene of interest into a bacterial plasmid in order to clone the human gene. The best answer is Recombinant bacteria that have taken up the plasmid can be recognized because they are able to survive in the presence of ampicillin.
A plasmid is a form of circular, double-stranded DNA molecule that is smaller than a cell's chromosomal DNA. Plasmids are present in some eukaryotic cells as well as in bacterial cells. Genes that give bacteria genetic benefits like antibiotic resistance are typically carried by plasmids.
A restriction enzyme, an isolated bacterial protein, cleaves DNA at particular sequence-specific places to produce DNA fragments with a known sequence at each end. Restrictions enzymes are crucial for numerous laboratory processes, including genetic engineering and recombinant DNA technologies. Therefore, restriction enzymes, also known as molecular scissors, are used to cut the plasmid. The restriction enzyme sliced the plasmid.
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Investigation 1.6: Kissing the Right Way
Most people are right-handed and even the right eye is dominant for most people. Researchers have long believed that late-stage human embryos tend to turn their heads to the right. German biopsychologist Onur Güntürkün (Nature, 2003) conjectured that this tendency to turn to the right manifests itself in other ways as well, so he studied kissing couples to see whether both people tended to lean to their right more often than to their left (and if so, how strong the tendency is). He and his researchers observed couples from age 13 to 70 in public places such as airports, train stations, beaches, and parks in the United States, Germany, and Turkey. The observers were careful not to include couples who were holding objects such as luggage that might have affected which direction they turned. We will assume these observations are representative of the overall decision-making process when kissing.
Practice Problem 1.8A
In Investigation 1.6, Dr. Güntürkün conjectured that 2/3 of kissing couples lean right.
(a) Would the normal approximation (Central Limit Theorem) be valid for the kissing study in Investigation 1.6? Justify your answer.
Answers
"The investigation 1.6 study on kissing couples was conducted by German biopsychologist Onur Güntürkün to determine whether couples have a tendency to lean towards their right when kissing.A central limit theorem approximates a sampling distribution to a standard normal distribution if a few requirements are satisfied. The central limit theorem is valid only for the large sample size, i.e., n > 30. The theorem may be applicable even for n < 30 if the sample distribution is approximately symmetrical. So, the normal approximation (Central Limit Theorem) would be valid for the kissing study in Investigation 1.6 since it was carried out on a large number of people from the United States, Germany, and Turkey aged between 13 and 70 in public places such as airports, train stations, beaches, and parks. Hence, the normal approximation would be valid for this study.
About BiopsychologistBiopsychologyist is a psychological approach from a biological aspect. Humans basically inherit physical traits from their parents, or also their genetic grandparents. These characteristics appear through the aspect of height, skin color, eye color, straight or curly hair, lip thickness and so on. Biopsychology deals with what Biopsychology is the scientific study of behavioral biology. Some call this field psychobiology, behavioral biology, or behavioral neuroscience, but it is usually called biopsychology because it denotes a biological approach to the study of psychology rather than a psychological approach to biology.
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Molecules needed in the cell
can sometimes be too large to
pass through the spaces of the
cell membrane. How do these
biological molecules move into
the cell?
A. The molecule will break up into smaller
pieces.
B. The molecule will shrink so that it can fit
in the spaces.
C. The molecule will move through a
matching protein channel.
Answers
Answer:
A: The molecule will break up into smaller pieces.
Explanation:
Its correct.
When evaluating a source for use in a course assignment, all the following can be considered as credible sources EXCEPT:
Question 1 options:
a. A peer-reviewed journal article with an abstract
b. A source in which the authors are identified and possess appropriate credentials.
c. UMGC Library OneSearch
d. The web domain is a .com.
Question 2 (1 point)
After observing the apple fall from the tree, which step below is the next appropriate task for Newton as part of his scientific investigation?
Question 2 options:
a. Presenting the observation at a conference
b. Asking questions
c. Publishing his findings
d. Conducting data analysis
Answers
"The web domain is a .com" is not consider as a credible source as it does not provide any information about the author or the content of the source. Thus, D is correct.
"Asking questions" is the next appropriate task for Newton as part of his scientific investigation after observing the apple fall from the tree. Thus, B is correct.
The Explanation to Each AnswerWhen evaluating sources for academic assignments, it is essential to ensure that they are credible and reliable.Peer-reviewed journal articles with abstracts, sources with identified authors possessing appropriate credentials, and UMGC Library OneSearch are considered reliable sources as they provide valuable information that has undergone a rigorous review process.
However, web domains like .com do not guarantee the accuracy and reliability of a source, as they can be created by anyone without any credible expertise. Thus, Option D is correct.
Scientific investigations require a systematic approach that involves asking questions, formulating hypotheses, conducting experiments, collecting data, analyzing results, and drawing conclusions.
After observing the apple fall from the tree, Newton would need to ask questions to form a hypothesis about why the apple fell and what caused it to do so. Once he has a hypothesis, he can then conduct experiments to test his theory, collect data, and analyze his results to draw conclusions.
Presenting the observation at a conference or publishing his findings would come later in the scientific investigation process. Thus, Option B is correct.
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Describe the osmotic problem faced by freshwater paramecium and state one way by which they overcome the osmotic problem
Answers
Water crosses a semi-permeable membrane via the osmosis process. Organisms that live in hypotonic environments, such as freshwater, must find a means to stop their cells from absorbing excessive amounts of water by osmosis.
The paramecium needs a reliable method of preventing their cells from absorbing too much water by osmosis because freshwater is thought to be hypotonic.There are three different kinds of osmotic conditions: hypertonic, isotonic, and hypotonic.The extra water that enters the cell through osmosis is stored in an organelle called a contractile vacuole. The vacuole releases its water back into the environment as it fills up.
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Describe the osmotic problem faced by freshwater paramecium and state one way by which they overcome the osmotic problem?
what factors are responsible for increasing the size of a population?
Answers
Answer:
Economic development
Explanation:
1. Natural increase: This refers to the difference between the number of births and the number of deaths in a population. If the number of births is greater than the number of deaths, the population will grow.
2. Immigration: If people move into a population from other areas, it can contribute to population growth.
3. High fertility rates: A high fertility rate, or the average number of children a woman has during her reproductive years, can also contribute to population growth.
4. Increased life expectancy: If people are living longer due to advances in medicine and public health, the population will grow.
5. Changes in social norms: Changes in social norms, such as the acceptance of smaller families, can also impact population growth.
It's worth noting that population growth is not always a positive thing, as it can put strain on resources and the environment. Some countries have implemented policies to encourage smaller families and slow population growth.
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1)What is it about the structure of ATP that contributes to its ability to act as an energy currency?
2)When a phosphate is transferred from ATP, it can phosphorylate another molecule. How could this assist in allowing a protein to transport molecules against their concentration gradient?
Answers
Answer/Exlanation:
1) ATP (adenosine triphosphate) can be hydrolyzed such that it loses a phosphate group to form ADP (adenosine diphodphate). This is called ATP hydrolysis. This property allows ATP to act as energy currency because ATP hydrolysis releases the energy stored in the high energy phosphate bond.
2) Transporting molecules against their concentration gradient requires energy. When ATP loses its phosphate group, it can phosphorylate another molecule. This converts the molecule into its active state, giving that molecule the energy to pass through against the concentration gradient.
1) The ability of the ATP compound structure to act as an energy currency has been explained in the answers.
2) The method used by ATP to allow protein transport molecules against their concentration gradient has been explained below.
1) ATP is an acronym that stands for Adenosine triphosphate. This compound called ATP is divided into three phosphate groups with phosphate bonds that possess very high energy. Now, when water is added to ATP, the phosphate bonds that possess high energy will be broken down thereby releasing energy and producing adenosine diphosphate (ADP).
2) We saw above that when ATP undergoes hydrolysis, the phosphate bonds are broken down to form ADP and releases energy. However, it can undergo further phosphorylation to form another molecule which becomes energized when it goes to a higher energy state.
Now, In this higher energy state it gets to, it will be observed that the protein will possess enough energy to transfer molecules against a concentration gradient that requires energy.
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A scientist is investigating the effect of a pesticide on the
ability of certain types of weeds to produce seeds. The
scientist plans to conduct a test to find out whether the
amount of pesticide will affect whether a weed makes
seeds.
Which type of scientific investigation does this plan describe?
A. Experimental investigation
B. Theoretical investigation
C. Descriptive investigation
D. Comparative investigation
Answers
The type of scientific investigation of a plan based on conducting a test to find out whether the amount of pesticide will affect whether a weed makes seeds is A. Experimental investigation.
What is an experimental investigation procedure?An experimental investigation procedure refers to formulating a given test in controlled conditions in order to determine if our working hypothesis can be confirmed or needs to be rejected, which is a fundamental step of the scientific method.
Therefore, with this data, we can see that an experimental investigation procedure allows us to confirm or reject the hypothesis.
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(a) Blood consists of cells and plasma. Plasma transports various substances to and from different parts of the body. Describe the function of plasma in transporting named substances in the body.
Answers
Plasma carries dissolved nutrients, such as glucose, amino acids, and fatty acids, from the digestive system to the cells of the body. It also carries waste products, such as carbon dioxide and urea, from the cells to the excretory organs for elimination.
What is Plasma?Plasma is the fluid component of blood that makes up about 55% of its volume. It is a yellowish liquid consisting mainly of water, electrolytes, and proteins. The primary function of plasma is to transport various substances, such as nutrients, waste products, hormones, and gases, to and from different parts of the body.
Plasma also transports hormones produced by the endocrine glands to their target cells, where they regulate various physiological processes.
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16. A farm has a bluish-gray color Andalusian fowl, but doesn't want anymore of that color of bird. Which color of bird
would be best for the farmer to breed the bluish-gray Andalusian fowl with in order to have the lowest chance of
having offspring that are bluish-gray? Why?
Answers
Based on the Punnett square of the crosses shown, the color of bird that would be best for the farmer to breed the bluish-gray Andalusian fowl with in order to have the lowest chance of having offspring that are bluish-gray is Black fowl because they have a 50% chance, unlike white color that has a 100% chance.
What is cross-breeding?Cross-breeding is the process of breeding two organisms of different varieties, breeds, or species, in order to create offspring that possess desirable traits from both parents.
In the given crosses shown, crossing the bluish-gray Andalusian fowl with Black fowl have a 50% chance, whereas crossing the bluish-gray Andalusian fowl with white fowl color has a 100% chance.
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some cells of some single-unit visceral muscle: a. consist of muscle fibers that are structurally independent of each other. b. exhibit spontaneous action potentials. c. are chemically coupled to one another by gap junctions. d. all contract at the very same instant.
Answers
Some cells of some single-unit visceral muscle exhibit spontaneous action potentials.
In some cells of single-unit visceral muscle, such as smooth muscle, they can exhibit spontaneous action potentials. Unlike skeletal muscle, which requires external stimulation from nerves to generate action potentials, smooth muscle cells have inherent electrical activity that can generate action potentials on their own.
This spontaneous activity is due to the presence of pacemaker cells within the smooth muscle tissue. These pacemaker cells possess specialized ion channels that allow them to depolarize and generate action potentials rhythmically, leading to the contraction of the surrounding smooth muscle cells.
The spontaneous action potentials generated by pacemaker cells initiate the contraction of the smooth muscle cells and contribute to the rhythmic and coordinated contractions observed in single-unit visceral muscle.
Therefore, some cells of single-unit visceral muscle exhibit spontaneous action potentials, allowing for intrinsic electrical activity and coordinated muscle contractions.
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Which of the following conditions results in the faster evolution of a population? mutation selection nonrandom mating natural disaster
Answers
Natural disaster can potentially result in faster evolution of a population.
The correct option is D.
Natural disasters such as earthquakes, floods, wildfires, or severe climate events can lead to significant changes in the environment, altering the selective pressures on a population. During a natural disaster, individuals with certain genetic traits may have a higher likelihood of survival and reproduction compared to others. This selective pressure can drive the frequency of advantageous genetic variations within a population, leading to a faster evolution.
Mutation and selection are fundamental processes in evolution, but their speed of impact can vary. Mutations introduce new genetic variation into a population, while selection acts upon this variation, favoring traits that provide a reproductive advantage. The rate of mutation is relatively constant over time, but the rate of selection can be influenced by environmental factors. Natural disasters can accelerate the rate of selection by dramatically changing the environment and creating new selective pressures.
Hence , D is the correct option
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Paleontologist have discovered many fossils that document the evolution of birds from dinosaurs that roamed earth long ago what does the fossil record tell us about this change ?
Answers
Answer:
It happened slowly over a long period of time.
Explanation:
when binding of the inducer to the repressor causes a conformational change, which then prevents the repressor from binding to dna, the repressor is called a(n) protein.
Answers
When the binding of the inducer to the repressor causes a conformational change, which then prevents the repressor from binding to DNA, the repressor is called an allosteric protein.
A protein that has an effector that controls its activity by acting on a site that is physically apart from the protein's ligand-binding site is said to be allosteric.
A chemical that controls the expression of genes is an inducer. An inducer works in two different ways, namely:
Via turning off repressors. An inducer binds to the repressor, which causes the gene to be expressed. The repressor cannot bind to the operator because of the inducer's binding to the repressor.By tying up with activators. Absent an inducer, activators often bind activator DNA sequences weakly. The complex formed by the binding of the activator and inducer to the activation sequence activates the target gene. Transcription is halted by removing the inducer.Repressor proteins attach to the DNA strand and stop RNA polymerase from joining to the DNA and producing mRNA. Repressors are altered by the binding of inducers, which prevents them from binding to DNA.
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how does the 5 prime side differ from the 3 prime end on a dna model?
Answers
The carbon atoms in the sugar ring are numbered from 1' to 5', and the "5 prime end" of a nucleic acid strand has a free hydroxyl (or phosphate) on a 5' carbon, and the "3 prime ends" has a free hydroxyl on a 3' carbon.
What distinguishes prokaryotic from eukaryotic mRNA's 5 and 3 ends?The presence of the 5′ cap structure in eukaryotes shields the 5′ ends of the mRNA from 5′ to 3′ exonucleolytic activity. In prokaryotes, the newly transcribed mRNA's 5′ end does not undergo any more modifications and still has the 5′ triphosphate.
Which one of the following moves DNA's 5 ends to its 3 ends?DNA The RNA primers are extended in the 5' to 3' direction by the polymerase after it has recognized them. Processivity factors: assist in attaching the polymerase to the DNA and loading it onto the primer template. Topoisomerase: eliminates the positive supercoils that develop while the helicase unwinds the fork.
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What is the insertion of Tibialis anterior? Select one: a. Tibia b. Tarsal and first metatarsal c. fibula d. femur What is the origin of frontalis muscle? Select one: a aponeurosis b. eyebrows c. maxilla d. mandible
Answers
Thus, the answer is A - Aponeurosis.Thus, the answer is B - Tarsal and first metatarsal.
The tibialis anterior muscle is responsible for dorsiflexion of the foot and inversion of the ankle joint. The tibialis anterior muscle is a muscle that is situated on the anterior side of the leg.
This muscle begins from the upper two-thirds of the lateral side of the tibia, and the lower part of the lateral side of the interosseous membrane; the muscle then narrows and becomes the tendon, which passes through the superior part of the retinaculum extensorum, descending across the ankle joint, and inserts into the inferior surface of the medial cuneiform bone, and the base of the first metatarsal bone. Thus, the answer is B - Tarsal and first metatarsal.
Frontalis muscle is a broad muscle situated over the front part of the skull and is responsible for raising the eyebrows and wrinkling the forehead. The frontalis muscle's origin is the epicranial aponeurosis, a fibrous connective tissue that connects the occipitalis muscle to the frontalis muscle. The epicranial aponeurosis is a structure that covers the cranium's upper part. Thus, the answer is A - Aponeurosis.
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The transportation of substances in and out of a cell is regulated by the cell membrane.
Describe two factors that increase the rate of diffusion of a molecule across the cell membrane.
Answers
Answer:
membrane surface area and the concentration gradient
Explanation:
the larger the surface area of the membrane that a substance is diffusing through , the faster the rate of diffusion . Likewise , the bigger the difference in the concentration between 2 areas , the greater the concentration gradient and the faster the rate of diffusion.
Suppose a stock had an initial price of $66 per share, paid a dividend of $1.70 per share during the year, and had an ending share price of $59. Compute the percentage total return, dividend yield, and capital gains yield
Answers
The percentage total return is -8.03%, dividend yield is given by 2.58% and capital gains yield is -10.61%.
Now and again, the profit yield may not give that much data about what sort of profit the organization pays. For instance, the typical profit yield in the market is extremely high among land speculation trusts (REITs). In any case, those are the yields from conventional profits, which are unique in relation to qualified profits in that the previous is burdened as ordinary pay while the last option is burdened as capital additions.
Master limited partnerships (MLPs) and business development corporations (BDCs), in addition to REITs, typically have extremely high dividend yields. The U.S. Treasury requires these businesses to distribute the majority of their profits to shareholders because of their structure. The term "pass-through" refers to the situation in which the business does not have to pay income taxes on dividend-paying profits. However, the shareholder is obligated to tax the dividend payments as ordinary income. Profits from these sorts of organizations (MLPs and BDCs) don't fit the bill for capital increases charge treatment.
a) Percentage total return is -8.03%
b) Dividend yield is 2.58% and Capital gains yield is -10.61%
Part a:
Initial price per share, P0 = $66
Final price per share, P1 = $59
Dividend per share, D = $1.70
% Total return = \(\frac{P_1+D-P_o}{P_o}\) = \(\frac{59+1.70-66}{66}\) = -8.03
Capital gain yield = \(\frac{P_1-P_o}{P_o}\) = \(\frac{59-66}{66}\) = -10.61%.
Dividend yield = \(\frac{D}{P_o}\) = 1.70/66 = 2.58%.
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Can you think of a situation in which ot would be harmful to have new combinations of triats? explain.
Answers
Yes, there are situations in which new combinations of traits could be harmful. One example is when these new combinations create unintended consequences in the context of genetic engineering.
Genetic engineering is a powerful tool that allows scientists to manipulate the genes of organisms to produce desired traits. While it has potential benefits, such as creating plants resistant to diseases or pests, it also carries risks. One concern is the unintended side effects that might occur due to new combinations of traits that were not present in the original organism.
In some cases, these new traits could create organisms with characteristics that are harmful to their environment or other species. For instance, introducing a trait that increases the resistance of a plant to herbicides might inadvertently lead to the creation of a "superweed" that could outcompete native plants and disrupt local ecosystems. Similarly, introducing a gene for resistance to a particular disease in a crop might also result in the development of new strains of the disease that are even more virulent and difficult to control.
Moreover, these unintended consequences could extend to human health. For example, if a genetically engineered food crop unintentionally produces a new allergen, it could lead to an increase in allergies or other adverse health effects among those who consume the crop.
In conclusion, new combinations of traits can indeed be harmful in certain situations, especially when they are the result of genetic engineering without thorough understanding and proper control measures. It is crucial to carefully assess the potential risks and benefits of such new traits and to develop responsible practices in genetic engineering to minimize harm to the environment and human health.
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During which phase of mitosis do the chromosomes pull away from the middle of the cell?
Answers
In Anaphase of mitosis chromosomes pull away from the middle of the cell.
During this period the replicated chromosomes are split and moved to the opposite poles of the cells.What is mitosis?It is the process by which cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division.
What are chromosomes?It is along DNA molecule with part or all of the genetic material of an organisms.
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Organic molecules are the same as biomolecules true or false?
Answers
Answer:
false
Explanation:
The chinook wind blows down the leeward slopes of mountain ranges and is characteristically O A. warm and dry O B. warm and humid O C. cold and humid. OD.cold and dry
Answers
The chinook wind blows down the leeward slopes of mountain ranges and is characteristically A. warm and dry.
The Chinook wind is a warm and dry wind that blows down the leeward slopes of mountain ranges.
As the wind moves up the windward side of the mountains, it undergoes orographic lifting, which causes it to cool and release moisture in the form of precipitation.
As the air descends on the leeward side, it undergoes adiabatic compression, which leads to warming and drying. This process results in the Chinook wind being warm and dry as it reaches lower elevations on the leeward side of the mountains.
In conclusion, the Chinook wind is characterized as warm and dry as it blows down the leeward slopes of mountain ranges.
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Which of the following is not a fluid. A. Hydrogen gas. B.molten iron. C. Helium plasma. D.all the above are fluids
Answers
Answer:
The correct answer is A. Hydrogen gas.
Explanation:
Hydrogen gas is not a fluid because it is a gas and gases do not have a definite shape or volume. A fluid is a substance that can flow and take the shape of its container. Molten iron and helium plasma are fluids because they can flow and take the shape of their container.
which of the following is a scientific question A how many centimeters are in a meter B what is the average length of a white pen needle see C what is a good length for my pant legs D how long should I grow my hair
Answers
starting from a single individual, what is the size of a population of bacteria that reproduce by binary fission every 20 minutes at the end of a 2-hour time period? (assume unlimited resources and no mortality.) group of answer choices 16 32 64 128 8
Answers
The size of the population of bacteria at the end of the 2-hour time period is 64. So the answer is option 3.
If a population of bacteria reproduces by binary fission every 20 minutes, then the number of bacteria will double every 20 minutes.
In 2 hours (which is 120 minutes), there are 6 intervals of 20 minutes. Therefore, the number of bacteria will double 6 times.
Starting with 1 bacterium, the number of bacteria will be:
After 20 minutes: 2
After 40 minutes: 4
After 60 minutes: 8
After 80 minutes: 16
After 100 minutes: 32
After 120 minutes: 64
Therefore, the size of the population of bacteria at the end of the 2-hour time period is 64. So the answer is option 3.
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Correct Question:
Starting from a single individual, what is the size of a population of bacteria that reproduce by binary fission every 20 minutes at the end of a 2-hour time period? (assume unlimited resources and no mortality.) group of answer choices
1. 16
2. 32
3. 64
4. 128
5. 8
Disadvantage of asexual reproduction
Answers
All offspring will be identical to the parent, meaning there will be no genetic variation.
A neuron with an excitatory center-inhibitory surround receptive field will respond most when we stimulate _____.
Answers
A neuron with an excitatory center-inhibitory surround receptive field will respond most when we stimulate only the center
What does a neuron's receptive field look like?The area of the sensory world where a neuron's receptive field is located is where an appropriate stimulation can either raise (excitatory) or reduce (inhibitory) a neuron's activity. The region of the retina known as a retinal ganglion cell's receptive field is where light stimulus alters the cell's response or firing rate.
a reduction in receptor sensitivity even while a stimulus is present.
Additionally called hypercomplex cells. cell of the visual cortex with a strong inhibitory field at one end of its field that reacts best to stimuli of a very specific type anywhere in a broad receptive field. The locations of these cells are in V1 and V2. Their receptive field is the biggest.
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which of the following data were available to watson and crick when they were trying to determine the structure of dna? check all that apply.
Answers
X-ray crystallography is what Watson and Crick used to try to figure out the structure of DNA.
How did Watson and Crick discover DNA's structure?The discovery of DNA's molecular structure by Watson and Crick was made possible by the first X-ray photograph of DNA, which was taken in 1952. It was produced by Rosalind Franklin using an X-ray crystallography method, revealing the DNA molecule's helical structure.
What does the Watson and Crick model structurally explain?Watson-Crick DNA's physical makeup. The Watson-Crick DNA Model (1953) A double-stranded, helical molecule, DNA is composed of nucleic acids. On the outside, it has two sugar-phosphate backbones, and on the inside, nitrogenous bases are bound together by hydrogen bonds.
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