What name is given to a region of DNA that varies from person to person?
A) genetic marker
B) short tandem repeat
C) sticky end
D) restriction fragment
A
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If a female fruit fly is heterozygous and carries one allele for white eyes and one allele for red eyes, her mutant allele and her nonmutant allele will segregate during meiosis I
A. true B. false
The presence-absence test is a modification of which test?
A. Membrane filter B. Virus plaque assay C. MPN D. None of these choices are correct.
The vegetative body of a fungus is called a ______.
a. thallus b. mycelium c. hypha d. septum
Irregular dental hygiene and a high sugar diet may led to tooth decay. Why?
A. Bacteria consume calcium. B. Glucose forms a weak acid when dissolved in saliva. C. High concentrations of sugar soften the tooth enamel. D. Lactic acid fermentation is used to generate ATP under anaerobic conditions. E. Plaque degrades the tooth's protective mucosal layers.