Which type of crossover event produces two parental and two recombinant chromosomes in gametes?
A) single-strand crossover
B) two-strand double crossover
C) three-strand double crossover
D) four-strand double crossover
E) None of the above; all crossover events produce only recombinant chromosomes.
C
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The most common cause of liver cancer in the United States is hepatitis ________ virus.
A. A B. B C. C D. D
What rate comes closest to the maximum rate of carbon dioxide fixation you have measured in this activity?
a. 75 microliters/min b. 110 microliters/min c. 130 microliters/min d. 220 microliters/min
In DNA replication, which type of molecule is a primer?
a. nucleic acid b. lipid c. protein d. carbohydrate e. inorganic
As more is learned about cancer, it has become clear that cancer, with few exceptions, ________
A) is only dependent on the inherited genetics B) is a result of genetics and environmental factors C) has no genetic basis D) is 100% dependent on inherited genetics