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podryga [215]
3 years ago
13

Which nutrient is necessary for growth and tissue repair?

Biology
1 answer:
andre [41]3 years ago
3 0

Answer:

proteins

Explanation:

proteins increase metabolism and repairing damaged cells

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How does a scientist identify a recessive trait when mapping inheritance in different generations?
Finger [1]

If the trait is sex-linked (on the X or Y chromosome) or autosomal (on a chromosome that does not determine sex).

If the trait is inherited in a dominant or recessive fashion.

4 0
3 years ago
At one gene locus in humans there are 2 alleles: one for curly hair and another for straight hair. Neither allele is dominant, a
Dovator [93]

Answer:

25%

Explanation:

<u>Genotypes and phenotypes:</u>

  • SS = straight hair
  • CC= curly hair
  • SC = wavy hair
  • AA or A0= type A blood
  • BB or B0= type B blood
  • AB = type AB blood
  • 00 = type 0 blood

A man with straight hair and A blood has the genotype SS AA or SS A0.

A woman with wavy hair and B blood has the genotype SC BB or SC B0.

Their first child has straight hair and O blood: SS 00

Because the child has type 0 blood, both parents must have a 0 allele, so their genotypes are SS A0 and SC B0.

<u>If their second child is a boy with straight hair, what is the probability that he has A blood?</u>

The hair and blood type genes are independent, so the hair phenotype of the child is irrelevant to determine the probability of him having A blood.

The parental cross for blood type is A0 x B0.

If you do a Punnett Square, you'll get the following offspring:

25% AB, 25% B0, 25% A0 and 25% 00.

The answer is the child has a probability of 25% of having A blood.

8 0
3 years ago
Mediated transport of polar molecules and ions across the plasma membrane utilizes a(n) _____ carrier that binds to the substanc
agasfer [191]

The question is incomplete as it does not have the options which are:

Protein carrier

Lipid carrier

Porin carrier

All of the choices are correct

Answer:

Protein carrier

Explanation:

The transport of molecules through diffusion can be passive or facilitated. The facilitated diffusion in which the molecules are facilitated to cross required tow type of protein channels which are the channel proteins and the carrier proteins.

The carrier proteins are the transmembrane proteins which are specific for ions and to transport the molecules change their shape of conformation. The change in the shape is responsible for the release of ions on the other side of the membrane.

Thus, Protein carrier  is correct.

4 0
3 years ago
Question 1
PSYCHO15rus [73]

Answer:

thank for the point hahaha

5 0
2 years ago
What would happen to a reaction rate it there were two enzymes? What does that tell us about the way enzymes work?
Rus_ich [418]
Reaction will be faster.
Rate of reaction is proportional to the number of enzymes involved in the reaction.
6 0
3 years ago
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