DNA is important to a cell because
a. DNA is the cell membrane that allows nutrients to enter the cell and wastes to leave.
b. DNA contains the information necessary to make all of the molecules required by the organism.
c. DNA contains the information necessary for the cell to reproduce itself.
d. DNA is the cell membrane that allows nutrients to enter the cell and wastes to leave, DNA contains the information necessary to make all of the molecules required by the organism, and DNA contains the information necessary for the cell to reproduce itself,
e. DNA contains the information necessary to make all of the molecules required by the organism and DNA contains the information necessary for the cell to reproduce itself.
e
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One part of Darwin’s theory is that individuals with
certain traits have an increased competitive edge. The source of these traits is a. adaptation to stress. b. development over a lifetime. c. inheritance. d. mutation after birth. e. all of these.
Vertebrates have four Hox gene clusters that control the anterior-posterior axis. Indicate whether the statement is true or false
Which of the following is an example of sexually antagonistic selection?
a. Male fights over females raise the risk of female injury. b. Male red deer with high lifetime reproductive fitness have daughters with low lifetime reproductive fitness. c. Female birds engage in extra-pair copulations with males other than the one providing the main brood care. d. Red coloration in sticklebacks is an honest signal of male parasite re-sistance. e. A, B, and C.
When using a repeating trinucleotide sequence (such as 5?-AAC-3?) in a cell-free translation system, you will obtain:
(a) three different types of peptides, each made up of a single amino acid (b) peptides made up of three different amino acids in random order (c) peptides made up of three different amino acids, each alternating with each other in a repetitive fashion (d) polyasparagine, as the codon for asparagine is AAC