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Yakvenalex [24]
3 years ago
10

A scientist is investigating mutations. She observes a mutation where one or more nucleotides are inserted into a sequence of DN

A. The scientist claims that this insertion mutation will affect genetic variability. Is the scientist correct? Why or why not?
A
Her claim is incorrect because inserted nucleotides are not translated along with the original DNA sequence.

B
Her claim is correct because changing the DNA sequence will alter the amino acid sequence that codes for traits.

C
Her claim is incorrect because adding more nucleotides in a DNA sequence does not alter the coding of proteins.

D
Her claim is correct because lengthening the DNA sequence will keep genetic information stable during meiosis.
Biology
1 answer:
faust18 [17]3 years ago
4 0
<h3><u>Answer;</u></h3>

B. Her claim is correct because changing the DNA sequence will alter the amino acid sequence that codes for traits.

<h3><u>Explanation</u>;</h3>
  • <em><u>Genetic mutations caused by the insertion or deletion of one or more nucleotides causes a change in the amino acid sequence from the site of the mutation forward.</u></em>
  • Insertions and deletions results to frame-shift mutations when base pairs that are not a multiple of three are added to or deleted from the sequence.<u>This type of gene mutation alters the template from which amino acids are read, it thus alters the amino acid sequence that codes for characteristics shown by an organism.</u>
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