Question

in the dna in chromatin, substitution mutations: a. are at a maximum in the nucleosomes b. are rarely seen, but deletion mutations are common c. occur maximally in the same places as deletion mutations d. are at a maximum in the linker regions

Answer 1

In chromatin, substitution mutations are most common in linker regions. Option d is the correct answer.

Mutation by substitution When one nucleotide base is replaced by another, this occurs. Mismatch mutation A type of substitution mutation in which a single nucleotide is replaced, resulting in the coding of an incorrect amino acid, which usually results in a malfunctioning protein. Silent mutations are the result of genetic code redundancy (degeneracy): This is false, as silent mutations are the result of a base substitution that has no discernible effect on a protein's amino acid sequence.

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