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Anon25 [30]
2 years ago
14

Which pair of statements correctly describes a way that the chromatin contributes to gene expression?

Biology
1 answer:
Novosadov [1.4K]2 years ago
8 0

Answer:

Chromatin is responsible for gene expression.

Explanation:

Chromatin is responsible for gene expression because chromatin contains DNA that has all information about genes. chromatin controls the gene in order to form encoded products. DNA in chromatin send information to the RNA to produce specific types of proteins that are needed by the organisms for its growth and development so in that way the genes can be expressed in the organism.

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'if a nation is rich in resources then it can be developed' justify the statement <br>​
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5 0
3 years ago
In chickens, comb shape is determined by genes at two loci (R, r and P, p). A walnut comb is produced when at least one dominant
mariarad [96]

Answer:

in the obtained options, there is no dominant gene for the crossed pairs, therefore, no answer would be correct, however, when assigning a dominant character to the P gene, the correct answer would be:

E. Rr pp *rrPp

Explanation:

According to the information obtained we deduce:

Comb shape is produced by R and P

Comb of walnuts with an R or a P

Pink comb: 1 dominant P and R at the first locus and 2 recessive at the next locus

Pea comb: 2 recessive at the start and one dominant in the next position

1 single comb: 2 recessive at both loci

Rr pp × rr Pp will produce from the interbreeding: 2 walnuts, 1 single and 1 pea offspring.

We deduce that for the pink comb the genotype is: Rrpp

and for the pea comb it is rrPp

Rr pp × rr Pp generates crosslinks containing RrPp, rrPp, rrpp as children in a 2: 1: 1 ratio.

4 0
3 years ago
Veins returning to the heart can close to prevent the backflow of blood. Which component in the veins contributes to this proces
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8 0
3 years ago
What is the probability of a heterozygous offspring? Explain.
bagirrra123 [75]
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7 0
3 years ago
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