All Hfr strains integrate into the chromosome at
A) the same locus.
B) several specific sites.
C) the same locus most of the time, although there may be some variation.
D) loci that cannot be accurately determined.
Answer: B
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Because of its unique structure, mutations on the Y chromosome:
A. are accumulated within individual Y chromosome lineages. B. generally only affect male reproductive structure and function. C. are helpful for mapping genes. D. are shared only with specific regions of the X chromosome. E. happen only rarely.
The chance that two people have three repeat sequences at location A is 1 in 500. The chance that two people have four repeat sequences at location B is 1 in 800. What is the probability that two people have the same number of repeats in both location A and location B?
A.) 1 in 5,000 B.) 1 in 13,000 C.) 1 in 40,000 D.) 1 in 5,000,000
Genes that enable viruses to transform normal cells into tumor cells are called _______
a) cancogenes b) transformer genes c) ongogenes d) tumor enhancer genes e) haplogenes
Darwin studied a small group of finches on the ________ during his round-the-world trip
Fill in the blank(s) with correct word