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#1 A. A triplet of nucleotides in the DNA coding strand of a gene has the sequence GCG. Write all of the possible coding strand DNA sequences and corresponding RNA codons that can be made from this by a single transversion in the coding strand, as well as the amino acid encoded by each triplet b. Which of these transversions are missense mutations? #2 Flower beetles with the dominant allele R have black wings, whereas beetles that are homozygous for the recessive allele r have red wings. A second, independently assorting gene also influences wing color. The dominant allele C of this gene encodes a protein that prevents any pigment from being deposited in the wings. As a result, beetles bearing this dominant allele have colorless wings. A beetle with genotype CC RR is crossed with another beetle having genotype cc rr. Their offspring are then intercrossed to produce an F2 generation. What phenotypes are expected in the F2 beetles, and in what proportions? SHOW WORK!!!!!

/in /by

#1 A. A triplet of nucleotides in the DNA coding strand of a gene has the sequence GCG. Write all of the

possible coding strand DNA sequences and corresponding RNA codons that can be made from this by a single transversion in the coding strand, as well as the amino acid encoded by each triplet

b.   Which of these transversions are missense mutations?

#2 Flower beetles with the dominant allele R have black wings, whereas beetles that are homozygous for the recessive allele r have red wings. A second, independently assorting gene also influences wing color. The dominant allele C of this gene encodes a protein that prevents any pigment from being deposited in the wings. As a result, beetles bearing this dominant allele have colorless wings. A beetle with genotype CC RR is crossed with another beetle having genotype cc rr. Their offspring are then intercrossed to produce an F2 generation. What phenotypes are expected in the F2 beetles, and in what proportions? SHOW WORK!!!!!

 
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