Design five amino acid peptides that could be bound by a single hypothetical class I MHC protein. The MHC proteins binds peptides that are 10 amino acids long and have two anchor residues, tyrosine and isoleucine, at positions 2 and 5
What will be an ideal response?
Answer: Answers will vary because different amino acids can be used in the motif sequence. However, all five peptides should fit this pattern:
X-Y-X-X-I-X-X-X-X-X
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When one gene is able to modify the effect of a second gene, the phenomenon is known as:
A. simple dominance B. epistasis C. recessiveness D. independent assortment E. segregation
Two genes that are located on the same chromosome are said to be _______
A. physically linked B. recombinant C. parental-like D. nonparental-like
Nearly half of mammal species are ________
a. bats b. rodents c. marsupials d. aquatic
Which mode of reproduction is utilized by most aquatic invertebrates, fish, and amphibians?
A. Asexual reproduction B. Pathenogenesis C. External fertilization D. Internal fertilization E. Hermaphroditism