if your fathers dominant gene was blond hair, but your mother's dominant gene was brown hair, what would the Childs hair color be?
Answers
Answer:
Brown Or a Hazel color because a lot of kids come out with brown/hazel hair so I'm pretty sure Brown Or Hazel color
Explanation:
Ok
Related Questions
What is found at the center of a cell?
eukaryotes
molecule
nucleus
vacuoles
Answers
Answer:
The nucleus is found at the center of the cell.
Explanation:
a field containing soil that is 60 percent clay can hold a tremendous amount of nutrients but often has poor crop growth. what is the most likely explanation for this phenomenon? excessive concentrations of nutrients in soil can become toxic to many types of plants. clay can hold heavy metals that are toxic to plants. plant roots have difficulty penetrating a soil that is 60 percent clay. the base saturation of clay soil is too high for most plants.
Answers
The physical characteristics of soil can be broken down into twelve categories. Each of these physical characteristics of soil is important to agriculture and improves plant health in general.
One of the heaviest soils is said to be clay. Due to the capillary action between the clay particles, the soil can keep a lot of nutrients and water while draining more slowly. Clay soil has the tiniest particles of any type of soil for plant health.
Clay soil can be recognized rather easily. It may be rolled, smeared easily, and smoothed into a glossy finish. It is sticky when wet. However, clay soil has a propensity to become extremely hard as it dries, which leads to the clay cracking as it dries.
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An atom with either more electrons or fewer electrons than protons is a
Answers
Answer:
BEEP BEEP IAM A SHEEPI SAId BEEP BEEP IAM A SHEEPExplanation:
Answer:
\(\boxed{\text{\sf \Large ion}}\)
Explanation:
An ion is an electrically charged atom or group of atoms formed by the loss or gain of electrons.
The Greek roots of the word prokaryote mean “before nucleus.” Describe the way that DNA is
organized in prokaryotic cells without the help of a nucleus. How does this approach differ from the way
that eukaryotic cells organize their
Answers
Answer:
hi I am so glad
Explanation:
to answer your qna
why and how does glucose prevent induction of the lac operon when present in the media at the same time as lactose
Answers
When glucose and lactose are both present in the media, glucose prevents the induction of the lac operon in E. coli.
Here are some key points to further explain why and how glucose prevents induction of the lac operon in the presence of lactose:
Glucose is a preferred energy source for E. coli, and its presence in the media signals that there is no need to activate the lac operon to produce more energy.The presence of glucose leads to a decrease in intracellular cAMP levels, which is necessary for activation of the lac operon.When glucose is absent, cAMP levels increase, and cAMP binds to the catabolite activator protein (CAP), forming a complex that binds to the lac promoter, leading to increased transcription of the genes in the lac operon.In the presence of glucose, however, the levels of cAMP are low, and cAMP-CAP complex formation is decreased, which leads to decreased transcription of the genes in the lac operon.This is because glucose is a preferred energy source for the bacteria, and the presence of glucose inhibits the production of cAMP, which is necessary for activation of the lac operon.
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Select the correct answer from each drop-down menu.
How do healthcare workers prevent the spread of infection?
All types of healthcare workers help to prevent the spread of infection. For example,
ensure the proper cooking
and handling of food.
are properly trained to disinfect and clean surfaces around healthcare facilities.
Answers
Answer:
The first blank is "Food Service workers" The Second blank is "Housekeeping Staff".
Explanation:
House keepers sanitize the room and surfaces for the next guest, and food service workers have guidelines they must follow to insure every customers safety.
The return phase to the starting position (lowering back to the floor) of the abdominal curl-up is controlled by a(n) _____.
Answers
The return phase to the starting position (lowering back to the floor) of the abdominal curl-up is controlled by a(n) eccentric contraction of the rectus abdominis, external oblique abdominal, and internal oblique abdominal
What is Abdominal curl-up?Abdominal Curl ups, also known as sit ups, are an activity that improves your core muscles and strengthens your abdominal muscles. Doctors recommend them to treat low back discomfort and to lessen the lordotic position of the lumbar spine. This workout was also recommended by a gym trainer who wished to lose belly fat.Slowly, lift your upper back off the floor while concentrating on your abdominals. As your abs pull you up, keep your arms, shoulders, neck, and legs relaxed and do not move any other parts of your body.The abdominal curl (or crunch) test is used to measure a client's abdominal muscle's strength and endurance.Learn more about curl-up test here:
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Why are there different sizes of bacterial colonies?
Answers
Answer:
colony size reduce means somehow its growth rate was hampered. In your experiment you r use salt but salt has a negative effect on E.coli.It dis regulate the osmotic balance of this bacterial cell after tolerance concentration may be this is the main reason of smaller colony size.
Each individual in a population belongs to one of three possible genotypes: AA (dominant), AB (hybrid), or BB (recessive). In a laboratory experiment, an individual of unknown genotype is mated with a hybrid. Offspring inherit one gene from each parent. A parent passes on a particular gene to the offsrping with equal probability. Show that the probabilities for the genotypes AA, AB, and BB of the offspring are given by vectors:
(a) (.5, .5, 0) if the unknown parent is dominant
(b) (.25, .5, .25) if the unknown parent is hybrid
(c) (0, .5, .5) if the unknown parent is recessive
Suppose the experiment of above is repeated a large number of generations—that is, in each generation an offspring is chosen at random and mated with a hybrid. Set up this process as a Markov chain, show that it is regular, and find the unique fixed-point stochastic vector. Interpret the result.
Answers
Interpreting the result, the unique fixed-point stochastic vector will provide insights into the long-term distribution of genotypes in the population. It shows the probabilities of each genotype reaching a steady state over multiple generations, taking into account the initial proportions and the probabilities of transitioning between genotypes in each mating.
In this laboratory experiment, we have three possible genotypes: AA (dominant), AB (hybrid), and BB (recessive). We are given that an individual of unknown genotype is mated with a hybrid, and the offspring inherits one gene from each parent with equal probability.
To determine the probabilities for the genotypes AA, AB, and BB of the offspring, we can consider the known genotype of the hybrid parent. Let's analyze each case:
(a) If the unknown parent is dominant (AA), it will always pass on the dominant gene (A) to the offspring. Therefore, the probabilities for the genotypes AA, AB, and BB of the offspring will be (1, 0, 0).
(b) If the unknown parent is a hybrid (AB), it has a 50% chance of passing on either the dominant gene (A) or the recessive gene (B) to the offspring. Therefore, the probabilities for the genotypes AA, AB, and BB of the offspring will be (0.5, 0.5, 0).
(c) If the unknown parent is recessive (BB), it will always pass on the recessive gene (B) to the offspring. Therefore, the probabilities for the genotypes AA, AB, and BB of the offspring will be (0, 0.5, 0.5).
Now, let's consider the process as a Markov chain, where each generation involves randomly selecting an offspring and mating it with a hybrid. This process is regular because there is a non-zero probability of transitioning from any state to any other state in a finite number of steps.
To find the unique fixed-point stochastic vector, we need to solve the equation:
P = P * T
Where P is the fixed-point stochastic vector and T is the transition matrix. The unique solution for P will represent the long-term probabilities of the genotypes in the population.
This analysis can help us understand how the population's genetic composition evolves over time and the stability of each genotype in the long run.
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Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as:
Answers
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.
Homeostasis is the body's ability to maintain a stable internal environment despite external changes.
In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.
These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.
For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.
Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.
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Which group of glycoproteins found on the cell's surface allow the body to recognize the cell as one of its own?
Answers
The group of glycoproteins found on the cell's surface that allow the body to recognize the cell as one of its own are called major histocompatibility complex (MHC) proteins.
Major histocompatibility complex (MHC) proteins play a crucial role in the immune system's recognition of "self" and "non-self" cells. They are glycoproteins found on the surface of nearly all nucleated cells in the body. MHC proteins are encoded by a highly polymorphic set of genes, which results in a diverse range of MHC molecules within a population. There are two main classes of MHC proteins: MHC class I and MHC class II.
MHC class I proteins are present on the surface of all nucleated cells and display fragments of intracellular proteins. These fragments, known as antigens, are derived from proteins synthesized within the cell.
MHC class I molecules interact with CD8+ T cells, which are responsible for recognizing and eliminating cells that present foreign antigens, such as infected or cancerous cells. By presenting self-derived antigens, MHC class I proteins help the immune system distinguish "self" cells from "non-self" cells.
MHC class II proteins, on the other hand, are predominantly found on the surface of antigen-presenting cells, including macrophages, dendritic cells, and B cells. They present antigens derived from extracellular sources, such as pathogens, to CD4+ T cells. This interaction helps activate the adaptive immune response and coordinates the immune system's response against invading pathogens.
In summary, MHC proteins, specifically MHC class I and MHC class II, are the group of glycoproteins found on the cell's surface that allow the body to recognize the cell as one of its own. Their presentation of self-derived antigens is crucial for immune tolerance and the proper functioning of the immune system.
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● Description and explanation of where ribosomes are found.
(prokaryote/eukaryote cell; animal/plant cell)
Answers
Answer:
Ribosomes are found in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER in a cell. They are found in both prokaryote and eukaryote cells.
Explanation:
EXPERIMENT: MASS OF GAS
Here is your goal for this lesson:
Write a report on the mass of gas
We often do not think of gas in terms of having mass. The atmosphere is something we live in and breathe. In this experiment, we will investigate whether gas does truly have mass.
Hypothesis: If gas does indeed have mass, then different volumes of it will have a different mass. This could be demonstrated by using a simple balance and comparing the two different volumes, captured by means of balloons.
Materials needed:
two balloons of the same size
meter stick
string
paper clips
Procedure:
1. Suspend the meter stick from the middle in such a way as to be able to move the string to balance. See the diagram below.
2. Attach each balloon to either end of the meter stick, making the apparatus balance.
3. Blow up each balloon to different volumes, thus measuring out different volumes of gas.
4. Attach the balloons as shown in the diagram below using the paper clips. Be careful to attach the balloons in the same place as where the apparatus balanced.
5. Answer the following questions in the writing space provided in this assignment.
Did the suspended balloons balance?
If they did not, which balloon tipped the scale down?
Did your results validate the hypothesis?
Give an explanation for your results, including a discussion of how the data collected either validated, or disproved the hypothesis.
Answers
The suspended balloons did not balance. The bigger balloon tipped the scale down. And yes, it validated the hypothesis that gas does have mass, as the bigger balloon weighed down the scale.
Gases have mass. Gas particle gaps are completely empty. Chemical reactions can produce gases as a byproduct. Under some circumstances, bonding between gas atoms is possible.
Loosely packed molecules can be found in gases. Gases have weight because the molecules that make them up have mass. Because of this, a balloon with air inside weighs more than one with none.
After combining the vinegar and baking soda, one of the paper bags will be "poured" with gas from the pitcher, which will cause the scale to tip toward that end even though nothing actually was poured into the bag. It is demonstrated by this that gas has mass and is heavier than oxygen.
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During El Niño years, why is Christchurch, New Zealand's air temperature cooler than usual?
Answers
Answer:
Normal years as you can see that the energy transfers mostly from the ocean to the air. However during El Nino years, less energy transfered from the current air which makes Christchurch cooler.
Explanation:
.
Answer: During El Niño years, Christchurch, New Zealand's air temperatures cooler than usual because the prevailing winds that normally drive a warm current from the Equator are disrupted, which means less energy is transferred to New Zealand's air
what is the function of rna polymerase? a all of the above. b it unwinds the double helix and adds nucleotides to a growing strand of rna. c it adds nucleotides to the 5' end of the growing mrna molecule. d it proceeds slowly along the dna strand, requiring about a minute to add two nucleotides to the growing mrna molecule.
Answers
In order to add nucleotides to an expanding strand of RNA, RNA polymerase unwinds the double helix.
What are the three roles that RNA polymerase plays?RNA Pol I: It synthesizes the pre-rRNA subunits that make up ribosomes, which is one of many forms of RNA Pol enzymes found in eukaryotes. RNA Pol II: It creates mRNA, snRNA, and microRNA precursors. RNA Pol III: It produces short RNAs, other rRNA precursors, and tRNA.
The double helix is it unwound by RNA polymerase?According to the DNA wrapping model of transcription, DNA bending and wrapping around RNA polymerase results in the DNA helix being unwound at the enzyme's catalytic site, which induces strand separation both before and during transcript elongation.
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in order to contribute to evolution, why must mutations in sexually reproducing organisms occur in the sex cells and not somatic cells?
Answers
Mutations in sexually reproducing organisms must occur in the sex cells and not somatic cells in order to contribute to evolution.
Sex cells, also known as gametes, are the cells that are involved in sexual reproduction and carry the genetic information from the parents to their offspring. Somatic cells, on the other hand, make up the body tissues and organs of an organism. When a mutation occurs in a somatic cell, it only affects the individual organism and is not passed down to its offspring. However, when a mutation occurs in a sex cell, it can be passed down to the offspring and potentially become a part of the gene pool of a population.
Therefore, mutations in sex cells are important for the variation and evolution of a species. Somatic mutations do not contribute to the genetic diversity of a population and cannot lead to evolution.
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the structure labeled 2 represents a molecule of
a
DNA
b
mRNA
c
tRNA
d
rRNA
Answers
Answer:
The structure labeled 2 is tRNA, transfer RNA
The primary difference between active transport and facilitated diffusion is that active transport is the only one in which
A) [S]high → [S]low.
B) transporter proteins are required.
C) [S]low → [S]high.
D) the concentration gradient provides the necessary energy for movement.
Answers
The correct answer is B) transporter proteins are required. Facilitated diffusion and active transport are both mechanisms for moving molecules across a membrane, but they differ in the energy requirements and the use of transporter proteins.
Facilitated diffusion relies on a concentration gradient and uses transporter proteins to move molecules from high to low concentration, but it does not require energy input. In contrast, active transport moves molecules against their concentration gradient, which requires energy input from ATP hydrolysis or other sources, and it always involves transporter proteins to facilitate movement.
Therefore, the key difference between the two processes is the requirement of transporter proteins for active transport.
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Please help fast…………………………….
Answers
Which of these energy sources is increasing its relative share of the global energy supply by the most since 2015?a. renewables b. nuclear c. coal d. oil
Answers
Renewables (a) have been increasing their relative share of the global energy supply the most since 2015.
What are renewables?
Renewables are energy sources that are replenished naturally and do not deplete finite resources. They are considered to be sustainable and environmentally friendly alternatives to non-renewable energy sources such as coal, oil, and natural gas.
The use of renewable energy sources, such as wind and solar power, has been growing rapidly in recent years due to a combination of declining costs, technological advancements, and increasing concern about climate change.
According to the International Energy Agency (IEA), the share of renewables in global power generation increased from 24% in 2015 to 30% in 2020. During the same period, the use of coal (c) decreased from 38% to 27%, while the use of oil (d) remained relatively stable at around 25%. The share of nuclear energy (b) also remained relatively stable, hovering around 5-6%.
The trend towards increased use of renewables is expected to continue in the coming years, with many countries setting targets to transition to 100% renewable energy in the coming decades.
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Cheetahs have a wide nasal passage, a big heart and lungs. Why?
Answers
Cheetahs have a wide nasal passage, a big heart, and lungs to support their high-speed running ability.
The wide nasal passage in cheetahs allows for increased airflow, enabling them to take in more oxygen during their intense bursts of speed. This helps meet the high oxygen demands of their muscles and provides the necessary oxygen for efficient respiration and energy production.
Cheetahs also have a big heart and lungs to accommodate their rapid acceleration and sustained high-speed running. A larger heart allows for greater blood circulation and oxygen delivery to the muscles, while larger lungs enable increased oxygen uptake. This combination of a big heart and lungs helps ensure an adequate oxygen supply to the muscles, enhancing the cheetah's stamina and endurance during high-speed pursuits.
Furthermore, the cheetah's cardiovascular and respiratory adaptations play a vital role in dissipating heat. The increased oxygen intake helps regulate the cheetah's body temperature during intense physical activity, preventing overheating and allowing them to maintain their speed over longer distances.
In summary, the wide nasal passage, big heart, and lungs in cheetahs are adaptations that optimize oxygen intake, support efficient respiration, enhance endurance, and aid in heat dissipation during their remarkable displays of speed and agility.
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Based on the description of DNA, given in the Do Now, what could be the nucleotide composition of a DNA double helix? 90 points 20% adenine, 20% guanine, 30% thymine, 30% cytosine 60% adenine, 20% thymine, 10% guanine, 10% cytosine 20% adenine, 20% thymine, 30% guanine, 30% cytosine 60% adenine, 20% guanine, 10% thymine, 10% cytosine
Answers
Answer:
20% adenine, 20% thymine, 30% guanine, 30% cytosine
Explanation:
Edwin Chargaff stated in his rule that, in a DNA molecule, the amount of purine bases (Adenine and Guanine) should equate the amount of pyrimidine bases (Cytosine and Thymine). Mathematically, this means that;
A + G + C + T = 100%
Where;
% Adenine base = % Thymine base
% Guanine base = % Cytosine base
Hence, according to this question, the DNA molecule described will contain
20% adenine = 20% thymine,
30% guanine = 30% cytosine
20% A + 20% T + 30% G + 30% C = 100%
RNA moves genetic information in DNA from the ___ to ___ so that proteins can be produced.
Answers
Answer: dna to rna
Explanation: science class
Which of the following statements is TRUE?
*Thin myofilaments contain actin, tropomyosin, and troponin.
Thick myofilaments contain myosin and tropomyosin.
Thin myofilaments contain myosin.
Thick myofilaments contain actin, tropomyosin, and troponin.
Answers
Answer:
a. Thin myofilaments contain actin, tropomyosin, and troponin.
Explanation: is correct/post protected
What does it mean when something is prokaryotic?
A. It has a membrane around its DNA
B. It has one nucleus.
C. It has no nucleus.
Answers
Answer:
C. It has no nucleus.
Explanation:
If something is prokaryotic, it has no nucleus. So, option (C) is correct.
When working on a biology assignment, josh was using information from his textbook to answer questions on the immune system. Because it was his first time learning about the immune system, josh had not yet learned or memorized any of the information. Josh has not consolidated this new information about the immune system into his?.
Answers
When working on a biology assignment, Josh was using information from his textbook to answer questions on the immune system. Because it was his first time learning about the immune system, josh had not yet learned or memorized any of the information. Josh has not consolidated this new information about the immune system into his long-term memory.
In the field of science, long-term memory is the ability of the mind to store a piece of information for longer durations, probably for months, years, or a lifetime. An extended memory of the brain is the long-term memory. On the other hand, short-term memory tends to remain in the brain for a few seconds or minutes.
By learning something, we tend to store information in our long-term memory. As Josh was looking at the immune system for the first time, his mind had not formed a long-term memory for it in order to remember it. In order to learn or memorize the topic, Josh has to consolidate information on the immune system mentioned in the textbook in his long-term memory.
Although a part of your question is missing, you might be referring to this question:
When working on a biology assignment, josh was using information from his textbook to answer questions on the immune system. Because it was his first time learning about the immune system, josh had not yet learned or memorized any of the information. Josh has not consolidated this new information about the immune system into his?
short-term memory
working memory
long-term memory
episodic memory
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local innate immune responses attempt to control a parasite in the early stages of infection. what happens if these local immune responses fail to control the parasite?
Answers
When local immune responses fail to control a parasite in the early stages of infection, antigen and antigen-loaded dendritic cells move to the lymphatics and then to local lymph nodes.
What are parasites?
A parasite is any organism that lives on or in a host organism and gets its food from or at the expense of its host. A parasite cannot live, grow, and multiply without a host, For this reason, a parasite rarely kills its host, but it can spread diseases, some of which may be fatal.
There are three main classes of parasites that can cause disease in humans namely: protozoa, helminths, and ectoparasites.
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A brown cat (BB) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?
a)10%
b)25%
c)75%
d)100%
Answers
a person in an extended fast (without food for at least 24-36 hours) has to break down some muscle tissue in order to manufacture. which cannot be made from fat (fill in blank with best choice). group of answer choices
(a) Polysaccharides
(b) Glycogen (c) Glucose
(d) glycerol
Answers
Option (c) Glucose is the correct option .
In an extended fast, the body breaks down muscle tissue to manufacture glucose through gluconeogenesis to meet the energy needs of glucose-dependent tissues.
During an extended fast, the body's primary source of energy shifts from glucose derived from carbohydrates to stored fat. Initially, the body depletes its glycogen stores, which are polysaccharides made up of glucose molecules. Once glycogen stores are exhausted, the body starts breaking down stored fat through a process called lipolysis to produce energy. Fatty acids released from fat stores can be converted to ketone bodies in the liver, which can provide energy to various organs, including the brain.
However, certain tissues, such as red blood cells, certain parts of the kidney, and the central nervous system, require a constant supply of glucose as their primary energy source. As a result, during an extended fast, the body needs to manufacture glucose through a process called gluconeogenesis to sustain these glucose-dependent tissues.
Gluconeogenesis is the synthesis of new glucose molecules from non-carbohydrate sources, including amino acids derived from the breakdown of muscle tissue. When the body runs low on stored glucose and glycogen, it starts breaking down muscle protein to obtain amino acids that can be converted to glucose.
In an extended fast, the body breaks down muscle tissue to manufacture glucose through gluconeogenesis to meet the energy needs of glucose-dependent tissues. This process is necessary because certain tissues rely on a constant supply of glucose, which cannot be made directly from fat or glycerol.
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A tendency to maintain a balanced or constant internal state The regulation of any aspect of body chemistry Blood glucose
Answers
Homeostasis is the tendency to maintain a balanced or constant internal state. Homeostasis refers to the body's ability to maintain a constant internal environment in response to internal and external stimuli.
The nervous system and endocrine system work together to regulate the body's various physiological processes such as body temperature, heart rate, and blood glucose levels.Blood glucose is one of the many aspects of body chemistry that is regulated by homeostasis. The body needs to maintain blood glucose levels within a narrow range to ensure that there is a constant supply of energy for cellular processes. When blood glucose levels drop too low, the body responds by releasing glucose from glycogen stores in the liver.
When blood glucose levels are too high, the body releases insulin to help remove glucose from the bloodstream. Homeostasis plays a critical role in maintaining the body's overall health and wellness. Any disruptions to homeostasis can result in various diseases and disorders. For example, diabetes is a disease characterized by an inability to regulate blood glucose levels due to a lack of insulin production or insulin resistance.
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