The primate fossil named Lucy was a(n):
a. sahelanthropus
b. australopith
c. cercopith
d. prosimian
e. hominid
b
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Mutations at intron-exon splice sites in DNA can lead to a(n) _____
a. short or truncated protein b. protein that has a change in polarity c. change in hydrophobicity d. unspliced mRNA e. mRNA that cannot be translated
The DNA-binding proteins of almost all regulatory proteins use one of a small set of shapes that enable them to fit into the DNA major groove. These shapes are called
A. fingerprints. B. transcriptional domains. C. structural motifs. D. repressors. E. DNA prints.
After much study, ecologists have come to the conclusion that competitive exclusion
A. occurs rather frequently in nature. B. occurs more frequently in tropical habitats than temperate ones. C. occurs very rarely in nature. D. occurs more frequently on islands than on the mainland.
Which of the following is found in tobacco smoke?
Cdk p53 BaP proto-oncogene telomere