Genetic drift will have a progressively larger impact on allele frequencies in a population as
a. gene flow increases.
b. population size decreases.
c. mutation rate decreases.
d. the number of heterozygous loci increases.
e. random mating increases.
B
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Shrimps, crabs, and lobsters are examples of
a. cephalopods. b. gastropods. c. mollusks. d. arachnids. e. crustaceans
The region where filtration occurs is indicated by
a. A. b. B. c. C. d. D. e. none of these.
The gland that secretes ADH is the _____.
A. anterior pituitary B. posterior pituitary C. kidney D. adrenal
Bioinformatics provides database information to align proteins from novel sequences with known proteins. If a new amino acid sequence does not match an existing sequence ________.
A. it is called an paralogue; the DNA that codes the ORF does not match any other organism in the database and the function is not known B. it is called an orthologue; the DNA that codes the ORF does not match any other organism in the database and the function is not known C. it is either a conserved hypothetical protein, i.e., the DNA matches genes in the database but they have no known function, or it is a protein of unknown function; the genes are unique to that organism D. it is either a protein of unknown function, i.e., the DNA matches genes in the database but they have no known function, or it is a conserved hypothetical protein; the genes are unique to that organism