Which amino acid would Nirenberg and Leder have found when they used the triplet UAG?
A. proline
B. isoleucine
C. lysine
D. threonine
E. None of the answers are correct.
Answer: E
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Alcoholic fermentation is the basis for
(a) bread baking. (b) beer brewing. (c) ethanol fuel production. (d) all of the above.
Which of the following are the best examples of homologous structure?
a. The finger bones found in humans, bats, and whales b. Wings in both birds, bats, and bees c. Beaks of birds and squid d. The streamlined, hydrodynamic bodies of both dolphins and sharks
What are the DNA "bonding rules" that allow DNA to maintain its specific structure?
a. A only bonds to T. b. C only bonds to G. c. A only bonds to U. d. Both a and b above.
Which endocrine gland is the main center for
control of the internal environment? a. pineal and thymus b. hypothalamus c. thyroid and parathyroids d. adrenal cortex and adrenal medulla e. pancreas and gonads