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
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Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles
Indicate whether the statement is true or false
Undergrowth of fungi after antibiotic use is commonly referred to as a superinfection
Indicate whether the statement is true or false
The growth of bacterial cultures is best described as
A. arithmetic growth. B. lag growth. C. logarithmic growth. D. cell division. E. replication.
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.