Below are the DNA sequences that encode the first eight amino acids for five alleles of the Adh protein in Drosophila pseudoobscura. Nucleotides that differ from the first sequence are shown by a lowercase letter. ATGTCTCTCACCAACAAGAACGTC ATGgCTCTCACCAACAAGAACGTC ATGTCgCTCACCAACAAGAACGTC ATGTCTtTgACCAACAAGAACGTC ATGTCTCTCACCAACAAGAACGTg QUESTION: 1. The fourth sequence shown above has two differences from the first sequence. Specifically, the third codon is TTG versus CTC in the first sequence. These two codons are two mutational steps away from each other. Supposing that the CTC sequence gave rise to the TTG sequence, do you think it is more likely that the one-difference intermediate was TTC or CTG?
Below are the DNA sequences that encode the first eight amino acids for five alleles of the Adh protein in Drosophila pseudoobscura. Nucleotides that differ from the first sequence are shown by a lowercase letter. ATGTCTCTCACCAACAAGAACGTC ATGgCTCTCACCAACAAGAACGTC ATGTCgCTCACCAACAAGAACGTC ATGTCTtTgACCAACAAGAACGTC ATGTCTCTCACCAACAAGAACGTg QUESTION: 1. The fourth sequence shown above has two differences from the first sequence. Specifically, the third codon is TTG versus CTC in the first sequence. These two codons are two mutational steps away from each other. Supposing that the CTC sequence gave rise to the TTG sequence, do you think it is more likely that the one-difference intermediate was TTC or CTG?
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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Transcribed Image Text:Below are the DNA sequences that encode the first eight amino acids for five alleles of the Adh
protein in Drosophila pseudoobscura. Nucleotides that differ from the first sequence are shown
by a lowercase letter.
ATGTCTCTCACCAACAAGAACGTC
ATGgCTCTCACCAACAAGAACGTC
ATGTC CTCACCAACAAGAACGTC
ATGTCTtTgACCAACAAGAACGTC
ATGTCTCTCACCAACAAGAACGTg
QUESTION:
1. The fourth sequence shown above has two differences from the first sequence.
Specifically, the third codon is TTG versus CTC in the first sequence. These two codons
are two mutational steps away from each other. Supposing that the CTC sequence gave
rise to the TTG sequence, do you think it is more likely that the one-difference
intermediate was TTC or CTG?
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