AKS 5c1: A researcher is examining the DNA sequences of a group of mice. He notices that in one of the mice, one nucleotide pair is substituted with another in the part of the DNA sequence that codes for fur color. However, despite the substitution, the mouse still has the same fur color as the other mice with the correct DNA sequence. Why does this substitution of nucleotides in the mouse NOT change its phenotype, or physical characteristics? * O The mouse has a completely different DNA sequence than the other mice. The substituted DNA nucleotides produce an mRNA codon that still codes for the () same amino acid. This is possible because there are often several codons that code for the same amino acid. Substitutions in the nucleotides of a mouse's DNA never affect their phenotypes O because a change in the sequence of DNA does not impact the mRNA codons made in transcription. Substitutions in the nucleotides of a mouse's DNA change the mRNA codons made in transcription, but only anticodons in translation determine phenotype.
AKS 5c1: A researcher is examining the DNA sequences of a group of mice. He notices that in one of the mice, one nucleotide pair is substituted with another in the part of the DNA sequence that codes for fur color. However, despite the substitution, the mouse still has the same fur color as the other mice with the correct DNA sequence. Why does this substitution of nucleotides in the mouse NOT change its phenotype, or physical characteristics? * O The mouse has a completely different DNA sequence than the other mice. The substituted DNA nucleotides produce an mRNA codon that still codes for the () same amino acid. This is possible because there are often several codons that code for the same amino acid. Substitutions in the nucleotides of a mouse's DNA never affect their phenotypes O because a change in the sequence of DNA does not impact the mRNA codons made in transcription. Substitutions in the nucleotides of a mouse's DNA change the mRNA codons made in transcription, but only anticodons in translation determine phenotype.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Step 1
Silent mutation
It is the change in the sequence of the nucleootide bases of the DNA. This change does not produce a subsequent change in the amino acid or the function of the overall protein. A single amino acid may change but if it has the similar properties as the replaced amino acid then no change will happen.
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