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iragen [17]
3 years ago
7

CAMP activates cAMP-dependent protein kinase by

Biology
1 answer:
Leya [2.2K]3 years ago
4 0

Answer:

binding regulatory subunits and inducing their release from the  catalytic subunits

Explanation:

cAMP molecules diffuse into the cytoplasm where they bind to an allosteric site on a regulatory subunit of a cAMP-dependent protein kinase ( protein kinase A,  PKA).

-In its inactive form, PKA is a  heterotetramer comprised of two subunits namely, regulatory (R) and two catalytic (C) subunits.

-The regulatory subunits normally inhibit  the catalytic activity of the enzyme. cAMP binding causes the  dissociation of the regulatory subunits, thereby releasing the  active catalytic subunits of PKA.

-cAMP stimulates glucose mobilization by  activating a protein kinase that adds a phosphate group  onto a specific serine residue of the glycogen phosphorylase  polypeptide.

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Suppose a male organism has a diploid chromosome number of 6. These chromosomes could be represented as A,a, B, b, C, and c wher
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Answer:

A. The haploid set of n is ABC

B. ABC, ABc, AbC, aBC, abc, abC, aBc, Abc.

Explanation:

A diploid cell is a cell that comprises of two complete sets of chromosomes. This is double the haploid chromosome number. Each pair of chromosomes in a diploid cell is noted to be a homologous chromosome set. A homologous chromosome pair consists of one chromosome donated from one parent and one from the other parent. This number is represented as 2n. It varies in different organisms. A diploid cell replicates via mitosis. It preserves its diploid chromosome number by making an identical copy of its chromosomes and distributing its DNA in an equal manner between two daughter cells.

Haploid refers to a cell that contains a single set of chromosomes. Gametes are made up of half the chromosomes contained in normal diploid cells of the body, these are also known as somatic cells. Haploid gametes are produced during meiosis. Meiosis is a type of cell division that reduces the number of chromosomes in a parent diploid cell by half.

Therefore,

Karyotype of this organism is designated as AaBbCc.

AaBbCc is the diploid set (2n).

Hence ABC or abc are the haploid set (n).

B. The eight different combinations of these chromosomes that could possibly be produced by spermatogenesis in this male are:

ABC, ABc, AbC, aBC, abc, abC, aBc, Abc.

7 0
3 years ago
Why did Mendel use pea plants in his experiments? A. They are haploid organisms.
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C. They self-fertilize

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A is wrong: they are diploid

B is wrong: it definitely has chromosomes

D is wrong: since it has chromosomes it can potentially have recessive traits

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