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Eva8 [605]
3 years ago
5

Freckles are a dominant trait in humans. Both of the girls have the genotype FF for freckles. If either one marries a man with n

o freckles, what are the chances that their children will have freckles?
Biology
1 answer:
sweet [91]3 years ago
5 0

The answer is actually 100%

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Why is it important to maintain the ph of blood and tissue fluids within normal limits? check all that apply
steposvetlana [31]

Enzymatic and other proteinic activity is limited by pH. 2) Slight deviations from normal pH can shut down metabolic pathways. 3) The structure and function of macromolecules are pH dependent.

<h3>How does the pH levels affect enzymes and proteins?</h3>

Enzymes, like all proteins, are polypeptidic molecules.

They need to get an accurate tridimensional structure to accomplish their function.

There is a limit of temperature and pH level at which they lose that structure and denaturalize.

<u>pH changes</u>

The most accurate configuration for the best catalytic performance depends on the charge of the lateral chains and the environmental pH.

Enzymes have ionizable chemical groups in the lateral chains of their amino acids.

Depending on the environmental pH, these groups will have a positive, negative, or neutral charge.

There is an optimum pH level at which enzymes get the best configuration to accomplish their functions.

Most enzymes are sensitive to any change in pH, which might drastically affect their activity. So every enzyme has its optimum pH level, and any slight deviations will cause the enzyme denaturalization, hence, its activity loss.

Whenever the enzyme loses its configuration, and hence, its function, the whole pathway in which it is involved is interrupted.

Options 2 and 3 are correct.

  1. Slight deviations from normal pH can shut down metabolic pathways.
  2. The structure and function of macromolecules are pH dependent.

You can learn more about enzymes and pH at

brainly.com/question/14722647

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Why is it important to maintain the ph of blood and tissue fluids within normal limits? check all that apply

  1. Most enzymes require an acidic pH to function properly.
  2. Slight deviations from normal pH can shut down metabolic pathways.
  3. The structure and function of macromolecules are pH dependent.
  4. Hormones require a blood pH of at least 77 to function,
  5. A drop in blood pH causes dehydration

3 0
1 year ago
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The purpose of an experiment is to compare results with a(n) _____.
morpeh [17]
The best answer among the choices given is option B. The purpose of an experiment is to compare results with a hypothesis. A hypothesis is defined as a theory or idea that has not yet been proved. In order to turn this into a fact, scientific method should be done and the data obtained is analyzed whether it speaks the truth of the hypothesis.
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Lemurs’ bodies are adapted to efficiently store energy for times when food is scarce. This adaptation may help to explain how le
Brums [2.3K]

Answer: Lipids.

Explanation:

The large carbon -hydrogen bonds(C-H) in chains of lipids makes them ideal storage of energy.

T<u>he more C-H bonds breakage, the higher protons availability from Citric acid cycle NADH and FADH2  and hydrogen atom splitting (to protons and electrons) for  the electron transport chains (ETC</u>), and therefore the higher proton pumps for  more ATP's synthesis in the mitochondria matrix.  

In addition large number of electrons  surrounding carbon atom in fatty acids than other food molecule is added factor.  The transfer of these electrons to oxygen during oxidation of fatty acids releases large amount of energy (9 kilo calorie) into the cells,  more than other food substances  

4 0
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Individual iv-3 is born as a male affected with condition b but not condition
ra1l [238]
The probable genotype of the IV-3 with the perspective of autosomal inheritance will be A because he does not have condition A. Therefore both parents must be in condition A.
The probable genotype of IV-3 with the perspective of set=linked inheritance will be BbY this is because he has B condition. Therefore the mothers' genotype must be XBXb and the father's genotype must be XBY. 
The probability of IV-4 having condition A is 1/36
7 0
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