Humans have the diploid number of chromosomes, 2n = 46. This also indicates humans
A. have two genomes.
B. are more intelligent than worms.
C. have at least two genotypes that can result from fertilization.
D. have 23 chromosomes that are necessary for life.
A. have two genomes.
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A phosphodiester bond is formed between:
A. a fatty acid and a glycerol molecule. B. two amino acids. C. a base and a sugar. D. a 3' phosphate and a 5' hydroxyl group. E. a 5' phosphate and a 3' hydroxyl group.
A deficiency in the supply of pancreatic juice to the small intestine could have what result?
a. lack of insulin b. duodenal ulcers c. accumulation of large globs of fat d. lack of insulin and accumulation of large globs of fat e. lack of insulin, accumulation of large globs of fat, and duodenal ulcers
DNA is replicated during ______________________.
A. anaphase B. metaphase C. interphase D. prophase E. telophase
Which of these methods can be used to determine the number of viable microorganisms in a sample?
A. Counting a known volume of cells in a hemocytometer B. Measuring colony forming units per ml C. Measuring total cell mass D. Light scattering in a spectrophotometer