The pairing of chromosomes and crossing over

occur during



a. metaphase I.
b. anaphase II.
c. prophase I.
d. prophase II.
e. more than one of these.


C

Biology & Microbiology

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The lining the circulatory system is termed endothelium.

Answer the following statement true (T) or false (F)

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Unlike most diseases, cancer:

A: is caused by somatic mutations. B: involves expanding triplet repeats. C: involves point mutations. D: is multifactorial. E: is due to inversions.

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Which of the following devices is used for PCR?

A) an electrophoresis chamber B) a gene gun C) a DNA sequencer D) a thermocycler E) a nucleic acid synthesis machine

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Mining with microorganisms is accomplished by the process of

a. microbial reduction. b. microbial leaching. c. microbial bioaccumulation. d. fermentation, resulting in acid production.

Biology & Microbiology