The tertiary structure of a polypeptide refers to
A) its size.
B) the presence of pleated sheets.
C) the amino acids of which it is made.
D) the overall three-dimensional structure.
Answer: D
You might also like to view...
In DNA electrophoresis, fragment separation is based on
A) fragment size. B) fragment nucleotide content. C) fragment sequence. D) fragment charge. E) All of these
Consider the case of X-linked inheritance of a recessive mutant allele. Among progeny from a cross of an unaffected male and a heterozygous female carrier,
A: all male offspring of would show the trait. B: all female offspring who receive the recessive mutant X would show the trait. C: all male offspring who receive the recessive mutant X chromosome would show the trait. D: all female offspring would be carriers. E: roughly half of the female offspring would show the trait.
Two characters that appear in a 9:3:3:1 ratio in the F2 generation should have which of the following properties?
A) Each of the traits is controlled by single genes. B) The genes controlling the characters obey the law of independent assortment. C) Each of the genes controlling the characters has two alleles. D) Four genes are involved. E) Sixteen different phenotypes are possible.
Which of the following is NOT an inhibitor of DNA and RNA synthesis?
A. Rifampin B. Erythromycin C. Metronidazole D. Nalidixic acid