Skin color is often one of the first traits people notice in each other. Studies in zebra fish uncovered a mutation that altered a transport protein and resulted in light-colored fish. This discovery led to the finding that the same gene in humans has a strong influence on skin pigmentation in many populations.Researchers compared the amino acid sequences of the transport protein in zebra fish, puffer fish, mice, and humans. They found many stretches with identical sequences in all four species. Does this mean that the corresponding mRNA base sequences are also the same in these four species? Explain why or why not.a. No because the redundancy of the genetic code means that it is possible for deferent codons to specify the same amino acids.b. Yes, because the amino acid sequences synthesized on base of mRNA sequence base is a result of translation, so if amino acid sequences are identical, the mRNA base sequences will be identical too. c. Yes. because ail codons specify the same amino acids in all organisms. d. No. because stretches with identical sequences in this species mean that the corresponding rRNA base sequences are also the same.

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Answer:

The genetic code is degenerate because codon sequences, i.e., consecutive three nucleotides in the mRNA sequence, may exhibit variation among them and encode the same aminoacid.

Explanation:

In this case, the four species encode mRNAs that are translated into homologous proteins. These homolog proteins share sequence identity as they are evolutionary (and structurally) related. However, mRNAs are different because genomic sequences accumulate variation during evolution