Suppose that B is the dominant trait and b is the recessive trait. What are the chances that the offspring of these two parents will display the recessive trait?
Answers
Answer: 0%
Explanation: If one parent is has BB genotype, and the other bb then the ofspring possibility would all be Bb
Answer:
zero percent
Explanation:
Related Questions
Why are cycles important in biology?
Answers
Answer:
They Are Vital As they recycle elements and store them too, and regulate the vital elements through the physical facets.These cycles depict the association between living and non-living things in the ecosystems and enable the continuous survival of ecosystems.How do mutations that affect the viral protein coat allow human immunodeficiency virus (HIV) to evade the immune system?
-Mutations can alter the antigenic determinant on the protein coat.
-Changes to the viral protein coat enable the bound virus to leave the antigen‑binding site.
-The virus alters the viral protein coat to mimic host cells.
-Mutant viral coat proteins attract macrophages to the pathogen.
Answers
Mutations that affect the viral protein coat allow human immunodeficiency virus (HIV) to evade the immune system by altering the antigenic determinant on the protein coat.
The antigenic determinant is the part of the viral protein coat that is recognized by the immune system as foreign, and the immune system produces antibodies against it. When the antigenic determinant is altered by a mutation, the antibodies that were previously produced may no longer recognize the virus, allowing it to evade the immune system. This is a mechanism of viral immune evasion known as antigenic variation, where the virus changes its surface antigens to avoid detection by the host immune system.
The other options listed are not correct mechanisms of viral immune evasion by mutations affecting the viral protein coat.
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what is phenotype, homozygous, and heterozygous in a kids definition?
Answers
Genetics is a field of study in Biology that explores how traits are inherited and expressed in living organisms, including humans, animals, and plants. Knowing key terminology can help us deepen our understanding of the topic.
Phenotype: Refers to the observable or physical traits of an organism. For example, if we are looking at a human who is tall and has black hair, we can say that the phenotype for that human is tall for the height gene and black for hair color.
Homozygous: When an individual has two identical copies of a gene for a particular trait. If homozygous, the genes inherited from the mother and father are exactly the same. For example, if T = tall and t= short, a homozygous individual would be either TT or tt for their height gene.
Heterozygous: When an individual has two different copies of a gene for a particular trait. If heterozygous, the genes inherited from the mother and father will be different. For example, if B = blue hair and b = brown hair, a heterozygous individual would have Bb for their hair color gene.
based on an analysis of ancient hominin skeletons, the percentage of deaths that resulted from inter-species violence has been calculated to be about: group of answer choices 2% 10% 20% 5%
Answers
The percentage of deaths that resulted from inter-species violence has been calculated to be about 10%.
This calculation was based on an analysis of ancient hominin skeletons. This percentage is significant because it suggests that violence has been an enduring characteristic of human society. According to researchers, this violence was not limited to conflicts between groups. Rather, it extended to conflicts within groups as well.
The percentage of deaths that resulted from inter-species violence is significant because it suggests that violence has been an enduring characteristic of human society. According to researchers, this violence was not limited to conflicts between groups. Rather, it extended to conflicts within groups as well. This suggests that violence has been an important aspect of human society for a long time, and it is likely to continue to be so.
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PLEASE I know this is simple but can you just give me the answer I need to bring my grade up in bio PLEASE I LOVE YOU
Answers
Explanation:
Its a mitochondria and it supplies energy to the cell
Bats are often used as an indicator species, or a population or species of organisms used to measure the overall health of a specific environment. Bats are chosen because they are often the top predators of many nocturnal insects and are extremely sensitive to environmental changes.
Scientists estimate that over 5.5 million bats have died since 2006. Many of these bats died as a direct result of white nose syndrome (WNS). WNS is a fungal disease that affects bats during hibernation and often results in a high percentage of deaths in a colony during a single season. The map shows occurrences of WNS in bats located in North America.
How would the decline in bat populations disrupt the stability of the ecosystem they inhabit?
A The ecosystem will become less stable as prey populations for the bat increase and predator populations of the bat decrease.The ecosystem will become less stable as prey populations for the bat increase and predator populations of the bat decrease.
B The ecosystem will become more stable as an invasive species is removed from the environment.The ecosystem will become more stable as an invasive species is removed from the environment.
C The ecosystem will become more stable as the overpopulated species of bat is removed from the environment.The ecosystem will become more stable as the overpopulated species of bat is removed from the environment.
D The ecosystem will become less stable as the predator population for the bat finds new food sources causing a steady population increase.
Answers
The decline in bat population disrupts the stability of the ecosystem they inhabit through the fact that the ecosystem will become less stable as prey populations for the bat increase and predator populations of the bat decrease. Thus, the correct option for this question is A.
What is an Indicator species?An indicator species may be defined as a type of species that significantly demonstrates the health of the community. These species govern the traits or characters of the environment. Such kinds of species are used to measure the overall health of a specific environment.
According to the context of this question, when a huge population of bats declines, it will eventually affect the ecosystem negatively. This is because rabbits are often the top predators of many nocturnal insects and are extremely sensitive to environmental changes.
And when they are removed, the population of insects rises. But sometimes, due to a lack of resources and food, they also died or it is possible for them to find new resources.
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can either a genotype or phenotype be expressed as a percentage?
Answers
Answer:
Phenotype
Explanation:
"only four phenotypes result from the six possible ABO genotypes. How does this happen? To understand why this occurs, first note that the A and B alleles code for proteins that exist on the surface of red blood cells; in contrast, the third allele, O, codes for no protein."
Sorry if im wrong
Imagine that you fill a shallow tray with water and place a drop of red ink in one end of the tray and a drop of green ink in the other end. Which of the following is TRUE at equilibrium?
(A) The red ink is uniformly distributed in one half of the tray, and the green ink is uniformly distributed in the other half of the tray.
(B) The red and green inks are both uniformly distributed throughout the tray.
(C) Each ink is moving down its concentration gradient.
(D) The concentration of each ink is higher at one end of the tray than at the other end.
(E) No predictions can be made without knowing the size of the ink molecules.
Answers
When you fill a shallow tray with water and place a drop of red ink in one end of the tray and a drop of green ink in the other end. The following is true at equilibrium is B. The red and green inks are both uniformly distributed throughout the tray.
At equilibrium, the ink molecules will move from the region of higher concentration to the region of lower concentration until the concentration of both the red and green ink is uniform throughout the tray. Therefore, the correct option is (B).Option (A) is incorrect because it predicts that the red ink will be uniformly distributed in one half of the tray, and the green ink will be uniformly distributed in the other half of the tray.
However, at equilibrium, the ink molecules will move towards the region of lower concentration until both the red and green ink are uniformly distributed throughout the tray. Option (C) is incorrect because it suggests that each ink is moving down its concentration gradient. However, both inks are moving down their respective concentration gradients, from regions of higher concentration to regions of lower concentration, until both are evenly distributed throughout the tray.
Option (D) is incorrect because it states that the concentration of each ink is higher at one end of the tray than at the other end. However, both inks will spread out until their concentration is the same throughout the tray. Option (E) is incorrect because the size of the ink molecules is not a relevant factor in this scenario as it does not influence the behavior of ink molecules during diffusion. Therefore, the correct answer is (B) The red and green inks are both uniformly distributed throughout the tray.
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Go dhxhxh
Kk jxhxhchhxhxjjdjd
Answers
Oxygen is a chemical that produces a green blue color in Uranus and Neptune
True or false
Answers
False
what cellular structure is involved in photosynthesis
Answers
Answer:
Chloroplast
Explanation:
*Chloroplast*
Because it is the cellular structure (part of a cell) that contain chlorophyll for trapping sunlight.
The cellular structure involved in photosynthesis is the chloroplast.
Chloroplasts are membrane-bound organelles found in the mesophyll cells of plants, algae and some protists. They are the site of the light-dependent reactions of photosynthesis, where light energy is captured and converted into chemical energy in the form of ATP and NADPH.
Chloroplasts contain a pigment called chlorophyll, which absorbs light and transfers the energy to other molecules in the chloroplast. The chloroplast also contains thylakoid membranes, which are stacked and organized into grana, where the light-dependent reactions take place.
Chloroplasts play a crucial role in producing oxygen and organic molecules that are essential for the survival of plants and other photosynthetic organisms. They are also the source of energy for most life on Earth, as they are the starting point for the transfer of energy through the food chain.
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sense receptor cells that project antenna-like hairs are located within
Answers
The sense receptor cells that project antenna-like hairs are located within the insect's antennae.
Antennae, which are connected to the head, are one of the defining characteristics of insects. The sensory receptors that allow insects to interpret their surroundings and communicate with one another are contained inside these antenna-like structures. Insects use their antennae for a variety of reasons, including finding food, detecting mates, and avoiding predators.
The sensory receptor cells that project antenna-like hairs are located within the insect's antennae, where they pick up chemical, mechanical, and thermal stimuli. Insects with long antennae, such as mosquitoes and butterflies, are particularly sensitive to their surroundings, as they are exposed to a greater number of sensory receptors. The sensory hairs on their antennae can detect the chemical signatures of other insects, locate nectar-rich flowers, and even sense minute variations in air pressure.
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where can you get information about endangered species?
Answers
Answer:
The National Wildlife Federation
Explanation:
I think this is where you can learn about endangered species.
Hope this helps!
If you incubate 14C-CO2 with liver extracts capable of performing gluconeogenesis, where does the radioactive label end up? Please explain the chemical logic underpinning this step? _____
Pyruvate derived from alanine has a different pathway to PEP than pyruvate derived from lactate. What are these two pathways and what is the rationale behind having two different pyruvate->PEP pathways?
____
Answers
If you incubate 14C-CO2 with liver extracts capable of performing gluconeogenesis, the radioactive label would end up in glucose. The chemical logic underpinning this step is that during gluconeogenesis, pyruvate is converted into oxaloacetate and then to phosphoenolpyruvate (PEP), which is then converted to glucose.
In the process, CO2 is incorporated into oxaloacetate to form malate, which is then converted back to oxaloacetate, releasing CO2. The CO2 that was initially incubated with the liver extract is therefore incorporated into glucose, resulting in the radioactive label being present in the glucose.
Pyruvate derived from alanine is converted into oxaloacetate via the alanine aminotransferase pathway, while pyruvate derived from lactate is converted into oxaloacetate via the lactate dehydrogenase pathway.
The rationale behind having two different pyruvates ->PEP pathways is that they allow the liver to use different sources of energy to produce glucose.
Alanine is produced by muscle tissue during periods of high activity, while lactate is produced by muscle tissue during periods of low oxygen availability. By having two different pathways, the liver can utilize both of these sources of energy to produce glucose, allowing for more efficient energy production.
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Mitosis results in two identical daughter cells, whereas meiosis results in
four sex cells. *
3 points
True
False
Answers
Answer:
true!!
Explanation:
a child with cystic fibrosis (cf) is receiving recombinant human deoxyribonuclease (dnase) or pulmozyme (generic name). what statement about dnase is true?
Answers
It is accurate to say that a child with cystic fibrosis (cf) is given pulmozyme or recombinant human deoxyribonuclease (dnase) (generic name).
Children with streptococcal pharyngitis shouldn't go back to school until they've finished taking antibiotics for 24 hours and the fever has gone down. Children with group A dnase strep pharyngitis who get antibiotics have a lower risk of having long-term effects (acute rheumatic fever).
Children who exhibit croup symptoms and signs should also be evaluated for the medical emergency known as epiglottitis. High fever and the child's poisonous appearance set epiglottitis apart from croup. Children who have epiglottitis will typically drool, have a sore throat, and sit or lean forward.
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Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
Answers
Identify two challenges that plants had to overcome in order to grow taller. 2. ln contrast to moss, vascular plants such as ferns have a dominant sporophyte.
Answers
It is correct that vascular plants, such as ferns, have a dominant sporophyte phase. In the life cycle of ferns, the sporophyte is the larger, more prominent, and longer-lived phase compared to the gametophyte. Two of these challenges are:
1. Structural support: Taller plants require a strong support system to prevent them from collapsing under their own weight. Vascular plants, such as ferns, developed specialized tissues like lignin to provide rigidity and strength, enabling them to grow taller compared to non-vascular plants like moss.
2. Water and nutrient transport: As plants grow taller, they need an efficient system to transport water and nutrients from the roots to the upper parts of the plant. Vascular plants developed specialized transport tissues called xylem and phloem to facilitate this process, allowing them to grow taller than moss, which lacks these tissues.
In contrast to moss, vascular plants like ferns have a dominant sporophyte, which helps them adapt to terrestrial environments and supports their taller growth.
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PLEASE HELP!!! (I will mark brainliest)
All energy resources have an impact on our environment. Fossil fuels do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions. It is important to understand the environmental impacts associated with producing power from renewable sources such as wind, solar, geothermal, biomass, and hydropower. The type and intensity of environmental impact from each resource varies depending on the technology used, the geographic location, and several other factors specific to each resource. 9) Harnessing wind power is one of the cleanest and most sustainable ways to generate electricity as it produces no toxic pollution or global warming emissions. Wind is also abundant and inexhaustible. But it has its disadvantages.
All BUT ONE could be considered a disadvantage to using wind power as a sustainable energy resource. A) Wildlife - Wind turbines negatively impact wildlife, most notably on birds and bats. B) Public health - People living close to wind turbines have complained about sound and vibration issues. C) Land use - Wind turbines can be sited on brownfields: abandoned or underused industrial land which significantly reduces concerns about land use. D) Competition - Off-shore wind facilities may compete with a variety of other ocean activities, such as fishing, recreational activities, and aquaculture.
Answers
Answer:
Wind, solar, geothermal, biomass, and hydropower also have environmental impacts, some of which are significant. Fossil fuels do substantially more harm than renewable energy sources by most measures. By understanding the potential environmental issues associated with each renewable energy source, we can takes steps to effectively avoid or minimize these impacts. Biomass power plants generate electricity from biomass that can be sustainably produced and utilized in the United States for energy and fuel, focusing on agricultural residues, waste materials, and forest biomass. In other regions enhanced geothermal systems (or hot dry rock geothermal), which involve drilling into the earth's surface to reach deeper geothermal resources, can allow broader access to geothermal energy.
Future of hydroelectric power in the United States will likely involve increased capacity at current dams and new run-of-the-river projects. Large-scale hydroelectric dams continue to be built in many parts of the world (including China and Brazil) There are environmental impacts at both types of plants. While actual impacts of large-scale operations have not been observed, a range of potential impacts can be projected.
Answer:
All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
When we study the owl’s food options, what type of ecological relationship are we observing?
Answers
Answer:
Predation
Explanation:
The owls are preying on their food, which is an example of the ecological relationship of predation in which the predator, the owl, eats the prey, the food options.
Jenna's age Jessica's age
today x x + 5
in 5 years x+5
5 years ago x + 5 - 5
Equality x + 5 = x + 5 - 5
=> x + 5 = x
The equation is x + 5 = x
That equation has not any solution, because it reduces to 5 = 0, which is an absurd.
So, the conclusion is that information given by Jenna is wrong.
It is logical: if the difference of the ages is 5, in five years Jenna will have 10 years more than what her sister had 5 years ago, no 5 as she told Jessica.
Answers
Answer:
Here ya go
Explanation:
suppose friendly ants fed on sugary droplets excreted from a caterpillar, but did nothing to help the caterpillar. assuming that taking the sugar does not hurt the caterpillar, what type of symbiotic relationship is this?
Answers
This is a symbiotic partnership of the commercial kind. When two organisms of different species operate together, they are said to be in a mutualistic relationship since they both gain from it.
What is an illustration of reciprocity?An illustration of a mutualistic relationship is the one between an animal called an oxpecker and a rhinoceros or zebra. Ticks and other skin-living parasites are eaten by oxpeckers when they settle on rhinos or zebras. The oxpeckers are fed, and the animals are protected from pests.
What does a mutualistic symbiosis look like in practice?In the warm waters of the Pacific or Indian Oceans, we would most certainly see a wonderful illustration of mutualism: the connection between water life and clownfish anemones. The mutualistic relationship is advantageous to both species. Living affixed to coral reef surfaces are sea anemones.
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why does a microscope stage have a small hole in it?
Answers
You can look through the hole fro a closer look
name the ecological instrument used in measuring aquatic factors
Answers
Answer:
Several tools aid ecologists in measuring abiotic factors, including thermometers, altimeters, pH meters and many other devices.
HELP I GIVE BRAINLEST Which of the following is true about an
estuary?
It is all fresh water.
It is all salty water.
It has very few organisms.
It is affected by tides.
Answers
Answer:
The last one since estuaries are highly affected and are dependent on tides
Answer:
all fresh
Explanation:
Which type of evidence acts as a record of changes in species over time and indicates major changes in Earth's surface and climate? A. Fossil record B. Movement of continents C. Ripple marks and mud cracks D. Composition of ice core samples
Answers
Answer:
A. Fossil record
Explanation :
A fossil can be defined as any preserved element (e.g., bones, exoskeletons, shells, animal imprints) which can be used to demonstrate the existence of organisms from past geological periods. The totality of fossils accumulated in a particular area is referred to as the fossil record. The fossil record is very useful in geology and paleontology because the information provided by the fossils helps to place geological events and species in their corresponding geologic eras and periods.
Answer:
Fossil Record
Explanation:
the drug atropine influences the autonomic nervous system by
Answers
The drug atropine influences the autonomic nervous system by blocking the action of the neurotransmitter acetylcholine at muscarinic receptors.
Atropine is classified as an anticholinergic medication, meaning it inhibits the effects of the parasympathetic nervous system, which is responsible for "rest and digest" functions. By blocking the action of acetylcholine, atropine causes the following effects:
1. Increased heart rate: Atropine reduces the influence of the parasympathetic nervous system on the heart, leading to an increased heart rate.
2. Bronchodilation: Atropine relaxes the smooth muscles in the airways, resulting in the dilation of the bronchial tubes and increased airflow.
3. Reduced salivation: Atropine decreases salivary gland secretion, leading to dryness in the mouth.
4. Decreased gastrointestinal motility: Atropine inhibits the parasympathetic activity in the digestive system, resulting in reduced gastrointestinal motility and potentially constipation.
5. Dilated pupils: Atropine causes pupil dilation (mydriasis) by blocking the action of acetylcholine on the iris sphincter muscles.
These effects make atropine useful in various medical settings, such as in the treatment of bradycardia (slow heart rate), as a preoperative medication to reduce secretions, and for ophthalmic procedures to dilate the pupils for examination or surgery.
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The drug atropine influences the autonomic nervous system by blocking the action of acetylcholine, a neurotransmitter that plays a key role in the functioning of the autonomic nervous system.
Atropine is classified as an anticholinergic drug, specifically an antimuscarinic agent. It binds to and blocks the muscarinic receptors in the body, which are primarily activated by acetylcholine. By blocking these receptors, atropine inhibits the effects of acetylcholine on target tissues.
In the autonomic nervous system, atropine primarily affects the parasympathetic division, also known as the "rest and digest" system. By blocking the muscarinic receptors, atropine inhibits the parasympathetic responses mediated by acetylcholine, leading to various physiological effects, including:
1. Increased heart rate (tachycardia)
2. Relaxation of smooth muscle in the bronchi, resulting in bronchodilation
3. Inhibition of glandular secretions, such as saliva, sweat, and gastric acid
4. Relaxation of smooth muscle in the gastrointestinal tract, which can lead to decreased motility and constipation
5. Dilation of the pupils (mydriasis)
6. Decreased urinary bladder contraction
These effects of atropine on the autonomic nervous system make it useful in medical settings for various purposes, such as dilating the pupils for eye examinations, increasing heart rate during cardiac arrest, or reducing secretions during anesthesia.
It's important to note that atropine has many other effects beyond the autonomic nervous system, and its usage should be carefully prescribed and monitored by healthcare professionals.
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What does the pH tells us about water?
a. Particles
b. Oxygen
c. Acidic or basic
d. Level of chlorine
Answers
Answer:
it's so obvious...
C. ... the pH tell us whether the water, a substance is acidic or basic.. but know that water is neutral
Answer:
C is the correct answer here.
A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid ₹27 for a book kept for seven days, while Susy paid ₹21 for the book she kept for five days. Find the fixed charge and the charge for each extra day.
Answers
Answer:
See the attachment.
Hope u understand
In the given question, 5₹ is the fixed charge and 3₹ is the charge for each extra day.
A fixed charge is a fee or cost that remains constant and does not vary with changes in usage or consumption.
Let the fixed charge for the first three days be x and the charge for each extra day be y.
From the given information, we can set up two equations:
For Saritha: \(\rm 3x + 4y = 27 -----(equation 1)\)
For Susy: \(\rm 3x + 2y = 21 -----(equation 2)\)
We can solve for x and y by using elimination or substitution:
Using elimination, we can multiply the second equation by 2 and subtract it from the first equation:
\(\rm 3x + 4y = 27\)
\(\rm - (6x + 4y = 42)\)
Solving above equations, we get:
\(\rm -3x = -15\)
\(\rm x = 5\)
Substituting x = 5 into one of the equations, we can solve for y:
\(\rm 3(5) + 4y = 27\)
\(\rm 15 + 4y = 27\)
\(\rm 4y = 12\)
\(\rm y = 3\)
Therefore, the fixed charge is ₹5 and the charge for each extra day is ₹3.
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PLEASE HURRY NO LINKS 50 POINTS
transfer of electrons create a positive ion and a negative ion the opposite charges attract one another causing a ___ to form
a.) atomic bonds
b.) chemical bonds
c.)molecular bonds