Ribosome inactivating proteins (RIPs) inhibit protein synthesis by preventing _____
a. mRNA from binding to the ribosome
b. tRNA from binding to the ribosome
c. the two halves of the ribosome from coming together
d. the ribosome from moving forward from one codon to the next
e. the newly synthesized amino acid chain from being released from the ribosome
ANSWER: d
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If two solutions have unequal concentrations of a solute, the solution with the lower concentration is called
A. isotonic. B. hypertonic. C. hypotonic. D. osmosis.
A cross is made between a female calico cat and a male cat having the gene for black fur on his X chromosome. What fraction of the offspring would one expect to be calico?
What will be an ideal response?
Variation that does not alter the ability of an individual to survive and reproduce is therefore considered:a
neutral b. genetic c. geographic d. heterozygous e. frequency-dependent
If a change in allele frequency at one locus does not result in the change in allele frequency at a second locus, one can assume that these loci:
a. support Mendel's Law of Segregation. b. are unlinked. c. support Darwin's view of heredity. d. are dominant. e. None of the above.