The first cloned cat, called Carbon Copy, was a calico, but she looked significantly different from her female parent because _____
A) the cloning was done poorly and it was likely that some contaminating cat DNA became part of Carbon Copy's genome
B) fur color genes in cats is determined by differential acetylation patterns
C) cloned animals have been found to have a higher frequency of transposon activation
D) X inactivation in the embryo is random and produces different patterns
D
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Which gametes can a RrYy plant produce?
A. RY or ry B. R or r C. RY, Ry, rY, or ry D. RrYy E. Rr or Yy
Given the diagram below, assume that a G1 chromosome (left) underwent one round of replication in 3H-thymidine and the metaphase chromosome (right) had both chromatids labeled
Which of the following replicative models (conservative, dispersive, semiconservative) could be eliminated by this observation?
A position effect occurs when a gene's expression is altered by virtue of a change in its position. One might expect position effects to occur with inversions and translocations
Indicate whether the statement is true or false
Why do sex hormones and other steroids take much longer to produce their effects than nonsteroid hormones do?
A) Steroids are bigger, slower molecules. B) Steroids must usually be carried longer distances by the blood. C) Steroids must relay their messages via relay molecules. D) Steroids cause target cells to make new proteins, which takes time.