Transfer of a functional domain from one gene to another, creating a novel protein, can occur by _______; this could provide an evolutionary advantage because
A. intron realignment; it shifts protein structure.
B. intron shuffling; it increases genetic variation in a population.
C. exon shuffling; it increases genetic variation in a population.
D. proteomics; it shifts protein structure.
E. both intron shuffling and proteomics; it shifts protein structure and increases genetic variation.
C. exon shuffling; it increases genetic variation in a population.
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Consider a diploid population in which a single locus supports two alleles, A1 and A2 and three genotypes P = (p2), R = (2pq) and Q = (q2). Assuming the values of P and Q are known, what is the value of R?
a. p2 b. q2 c. P+Q d. 1-(P+Q) e. None of the above
To replicate, a virus must ________
a. undergo mitosis b. self-assemble from abiotic chemical reactions c. undergo prokaryotic fission d. inject its genome into a cell and force the cell to make a new virus
After acetyl-CoA synthesis, the chemical energy of how many carbons of the original glucose molecule will be converted to chemical energy in the form of ATP in the remaining steps of aerobic respiration?
A. 1 B. 2 C. 3 D. 4 E. 5
Matsumara et al. showed that disulfide bonds create a more stable mutant T4 lysozyme. They inserted pairs of Cys residues into the T4 lysozyme sequence and observed that:
A. the reduction of cysteine residues created a protein that denatured at lower temperatures than wild-type lysozyme. B. the reduction of cysteine residues created a protein that was stable at higher temperatures than wild-type lysozyme. C. the oxidation of cysteine residues created a protein that denatured at lower temperatures than wild-type lysozyme. D. the oxidation of cysteine residues created a protein that was stable at higher temperatures than wild-type lysozyme. E. None of these choices is correct.