Position-effect variegation of red and white eye color in Drosophila produces
A) one red eye and one white eyes.
B) two red or two white eyes depending on which gene is dominant.
C) eyes alternating red and white eye facets.
D) eyes with red and white patches of varying sizes and positions.
D) eyes with red and white patches of varying sizes and positions.
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Actinomycetes form
A. substrate mycelia and aerial mycelia. B. prostheca with holdfasts. C. heat resistant endospores. D. a sheath made of polysaccharides and proteins.
Fills in small regions of DNA where the RNA primers were located
A. DNA ligase B. DNA primase C. Topoisomerase D. DNA polymerase I E. DNA polymerase III
The indigenous plants and animals of the Galapagos Islands and Cape Verde Islands:a
are the same species as those found on the nearby mainland. b. are the same species on the two islands, but are different from those on the mainland. c. are the same species on the two islands and on the mainland. d. are similar to one another, but quite different from either adjacent mainland. e. resemble the nearest mainland species, but have evolved into new species
One method used to prevent disulfide bond interference with protein sequencing procedures is:
A) cleaving proteins with proteases that specifically recognize disulfide bonds. B) protecting the disulfide bridge against spontaneous reduction to cysteinyl sulfhydryl groups. C) reducing disulfide bridges and preventing their re-formation by further modifying the —SH groups. D) removing cystines from protein sequences by proteolytic cleavage. E) sequencing proteins that do not contain cysteinyl residues.