An allele is to a gene as a locus is to a

A. unit of heredity.
B. chromosome.
C. genotype.
D. gamete.
E. phenotype.


Answer: B

Biology & Microbiology

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A(n) ____________________ between chromosome 9 and chromosome 22 in chronic myelogenous leukemia results in a Philadelphia chromosome

Fill in the blank(s) with correct word

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The pathway of metabolism that involves a series of electron transfers from reduced carrier molecules such as NADH2 and NADPH2 to a terminal electron acceptor is:

a. substrate-level phosphorylation. b. fermentative metabolism. c. oxidative phosphorylation. d. aerobic respiration.

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In DNA, complementary base pairing occurs between

a. cytosine and uracil. b. adenine and guanine. c. adenine and uracil. d. adenine and thymine. e. sugar and phosphate.

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Which of the following is true of telomeres?

a. They have the sequence ATAGGG. b. They are at in the middle of chromosomes. c. Their sequence can change. d. They shorten with each round of cell replication. e. They have the sequence ATAGTG.

Biology & Microbiology