A sequence variant of a gene is called a(n)
A) allele.
B) mutation.
C) nucleotide polymorphism.
D) ribotype.
Answer: A
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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.
From the pharynx, a bolus moves next into the:a
mouth. b. small intestine. c. large intestine. d. stomach. e. esophagus.
When you chose your physician, it is important that ________
A) he or she work in a big hospital and not in private care B) you feel comfortable with his or her style C) he or she be both an MD and a DO D) he or she have e-mail and phone access 24/7
In pre-mRNA processing, ____
a. exons are spliced out and used to produce ribosomal subunits
b. introns are spliced out and combined to form complete proteins
c. introns are spliced out and combined in the tRNA
d. exons are spliced out and the introns are combined in the mature mRNA
e. introns are spliced out and the exons are combined in the mature mRNA