Chromosomes are copied during what stage of the cell cycle?
A. M
B. D
C. G1
D. G2
E. S
Answer: E
Biology & Microbiology
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Which event of fertilization occurs first?
A. fast block to polyspermy B. the entry of sperm DNA into the egg C. the slow block to polyspermy D. the acrosomal reaction E. the cortical reaction
Biology & Microbiology
The breakdown of glucose in the cytoplasm is known as _____
What will be an ideal response?
Biology & Microbiology
Bioassays
a. are performed in a test tube using killed cells. b. expose a population of living organisms to a test substance. c. are used for chemotherapy. d. are none of the above.
Biology & Microbiology
Which of the following would inhibit the growth of most plants?
A) abundant humus B) air spaces C) good drainage D) a pH above 10.0
Biology & Microbiology