When a promoter is methylated, gene expression is:

a. silenced.
b. enhanced.
c. slowed.
d. maintained.
e. activated.


a

Biology & Microbiology

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The first wildlife refuges were established in the United States shortly after 1960.

a. true b. false

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The net ATP yield (at letter "D") from the metabolism of one glucose molecule is

a. 32. b. 4. c. 36. d. 64. e. 28.

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In fruit flies, red eyes (pr+_) are dominant to purple eyes (prpr) and normal wings (vg+_) are dominant to vestigial wings (vgvg). The genes are located on the same chromosome

A purebreeding red-eyed fly with vestigial wings was crossed with a pure-breeding purple-eyed fly with normal wings. All of the F1 progeny had a WT phenotype. Which of the following represents the arrangement of alleles on the F1's chromosome? A) prvg/pr+vg+ B) pr+vg/prvg+ C) prpr+/vgvg+ D) prvg/prvg E) pr+vg+/pr+vg+

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