As a transcription factor, Pax6:
A. targets the approximately 2000 genes
needed for eye development.
B. binds to the 3' regulatory elements of its
target genes.
C. activates its target genes.
D. represses its target genes.
E. activates some target genes and
represses others.
E
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Which of the following represents the last of the nonmodern humans?
A. Cro-Magnon B. Neanderthals C. Homo ergater D. Homo habilis
The ecological niche of a plant in your yard includes (select all that apply)
A. the pH of its soil. B. the insects that eat it. C. the tree that shades it. D. the depth to which the soil freezes in the winter. E. none of these.
In the dihybrid cross Aa Bb × aa bb, what proportion of heterozygotes for both gene pairs is expected among the F1 offspring?
A) 1/4 B) 1/2 C) 3/4 D) All are heterozygotes. E) None are heterozygotes.
Convergent evolution resulted in placental and marsupial mammals with similar structural features
____________________ Indicate whether the statement is true or false.