At the beginning of prophase I, a total of ________ molecules of DNA are contained in a developing human sperm cell

A) twice as many (as compared to mature sperm)
B) half as many (as compared to somatic cells)
C) 92
D) 23
E) 46


C

Biology & Microbiology

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Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles

Indicate whether the statement is true or false

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Undergrowth of fungi after antibiotic use is commonly referred to as a superinfection

Indicate whether the statement is true or false

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The growth of bacterial cultures is best described as

A. arithmetic growth. B. lag growth. C. logarithmic growth. D. cell division. E. replication.

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When examining the complete genome sequence of E. coli 0157:H7, a researcher notes that only one of two possible codons coding for lysine is observed in the genome. This is likely the result of:

a. mutational bias. b. this gene being highly expressed. c. unequal abundances of transfer RNA. d. selection against slip-stand mutations. e. All of the above.

Biology & Microbiology