Gene silencing ____
a. cannot be inherited
b. occurs when DNA is methylated
c. occurs due to histone acetylation
d. is an example of posttranscriptional regulation
e. occurs only on the X chromosome
ANSWER: b
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Answer the following statements true (T) or false (F)
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Assume that red plants crossed with white plants give rise to pink plants. Explain how to eliminate red
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Humans have two sex chromosomes that are named based on their shape. Males have (an) ________ and females have (an) ________.
A. two X chromosomes; X and Y chromosome B. two X chromosomes; two Y chromosomes C. X and Y chromosome; two X chromosomes D. two Y chromosomes; two X chromosomes