Second letter T TIC Phe TCT TTG LeuTCA Ser TAC Tyr TGT TAA Stop TGA Stop A TAG S

Question

Second letter T TIC Phe TCT TTG LeuTCA Ser TAC Tyr TGT TAA Stop TGA Stop A TAG Stop TGG TrpG TCG CCA Pro CAC/ His CGT CCG CTC Leu CTG CAG Gin CGA Arg ATT ACT ACC Thr AA Lys AGG ATA ATG Met ACG GATAsp GGC Gly A GTC Val GTA Val GCC GTG G GTC GCA Ala GAC Asp GGT GAG Glu GGA Gly C 14. The codon TCA codes for serine. If a new mutation occurred that replaced the "A" with a "T," this mutation would be and its fate would most likely be determined by (a) nonsynonymous; genetic drift (b) nonsynonymous; natural selection (c) synonymous; genetic drift (d) synonymous; natural selection 15. "Florida mice" essay question Describe Hopi Hoekstra's evidence for how coloration for Atlantic coast beach mice of Florida evolved independently from coloration for Gulf coast beach mice of Florida. Be specific in terms of the different genetic mechanisms associated with the formation of a similar phenotypic trait across the two beach mice populations. How did Hopi Hoekstra test the fitness (differential survival) associated with the presence or absence of the coloration trait in the beach mice? How do we know that the pale coloration trait of beach mice was derived from the ancestral coloration of mainland mice, and not vice versa? How could you test to see whether the change in coloration trait was heritable and not just a consequence of phenotypic plasticity?

Explanation / Answer

Answer:

14. Synonymous, genetic drift.

A synonymous mutation is a change in the DNA sequence that codes for amino acids in a protein sequence, but does not change the encoded amino acid. Due to the redumdancy of the genetic code(multiple codons code for the same amino acid), these changes usually occur in the third position of a codon.

Genetic drift is a change in allele frequency in a population, due to the forces of chance rather than natural selection.These changes in genetics can increase or decrease in a population, simply due to chance.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.