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

Biology & Microbiology

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Shrimps, crabs, and lobsters are examples of

a. cephalopods. b. gastropods. c. mollusks. d. arachnids. e. crustaceans

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The gland that secretes ADH is the _____.

A. anterior pituitary B. posterior pituitary C. kidney D. adrenal

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The region where filtration occurs is indicated by

a. A. b. B. c. C. d. D. e. none of these.

Biology & Microbiology

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

Biology & Microbiology