Which three classes of macromolecules are encoded by mtDNA?

A) transfer RNA, ribosomal RNA, and nuclear RNA
B) photosystem I, photosystem II, and tRNA
C) carbohydrates, enzymes, and proteins
D) proteins, transfer RNAs, and ribosomal RNA
E) lipids, carbohydrates, and nucleic acids


Answer: D

Biology & Microbiology

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After replication, chromosomes consist of how many molecules of DNA (assuming one chromatid is equal to one molecule of DNA)?

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The time of menstrual flow, or period, in a normal human female occurs 

A. at the same time as the egg is released from the ovary. B. approximately two days before the egg is released from the ovary. C. approximately two days after the egg is released from the ovary. D. approximately two weeks after the egg is released from the ovary.

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What does the chi-square test tell us about the linkage of two genes?

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Biology & Microbiology

Creating conditions in the laboratory that promote the growth of some microbes while inhibiting the growth of others is called

A) complex culturing. B) reducing conditions. C) enrichment culturing. D) transport conditions. E) differential culturing.

Biology & Microbiology