The science of reconstructing the evolutionary history of life is called
A) gradualism.
B) taxidermy.
C) biology.
D) systematics.
E) pre-adaptation.
D
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Several of the different globin genes are expressed in humans, but at different times in development. What mechanism could allow for this?
A) exon shuffling B) intron activation C) pseudogene activation D) differential translation of mRNAs E) differential gene regulation over time
The yeast MAT locus transcription factor, Mcm1, is produced by:
A. haploid a cells. B. haploid ? cells. C. diploid a/?cells. D. all haploid and diploid cells.
Which metaphors correctly compare chromatin remodeling and microRNA function?
A) A hammer and a nail B) An on/off switch and a dimmer switch C) An elevator and a submarine D) An activator and a repressor
What feature, among living animals, is completely unique to birds?
a. Laying amniotic eggs b. Four chambered heart c. The ability to fly d. Feathers e. Making a nest for rearing the offspring