Prenatal diagnosis is available for all of the following disorders EXCEPT
A) Down syndrome. B) AIDS. C) cystic fibrosis. D) sickle-cell anemia.
B
Biology & Microbiology
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A human cell with a total of 23 chromosomes would be considered:
A. haploid. B. diploid. C. polyploid. D. euploid.
Biology & Microbiology
A tuna is a ___ fish
a. ray-finned b. lobe-finned c. cartilaginous d. jawless e. invertebrate
Biology & Microbiology
When DNA fragments from different sources are mixed together, they begin combining with each other due to
A) complementary base pairing. B) the action of restriction enzymes. C) a change in pH. D) electrical currents present in the mixture. E) a change in temperature.
Biology & Microbiology
Bacterial cell walls are primarily composed of which of the following?
A) phospholipid protein B) protein C) carbohydrate D) peptidoglycan
Biology & Microbiology