The two strands of DNA are:

a. Parallel and complementary
b. Anti-parallel and complementary
c. Parallel and identical
d. Anti-parallel and identical


Answer: b. Anti-parallel and complementary

Biology & Microbiology

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Before a eukaryotic cell divides, ____ assemble, separate the cell's duplicated DNA molecules, and then disassemble

a. cilia b. flagella c. microtubules d. microfilaments e. intermediate filaments

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Examine this pedigree that shows segregation of Huntington disease and the DNA marker G8. What was the most likely genotype of individual V-3 at the DNA marker?



A) BC
B) AB
C) CC
D) AC
E) All of the possible genotypes are equally likely.

Biology & Microbiology

A nucleated, green cell that moves by means of flagella is a(n)

A) Alga. B) Bacterium. C) Fungus. D) Helminth. E) Virus.

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The loss of purine bases from a strand of DNA is typically caused by which of the following?

A. replication error B. ultraviolet radiation C. a spontaneous chemical reaction D. deamination E. double-strand DNA break

Biology & Microbiology