Genetic Practice Questions 1.Which of the following is not an epigenetic mark? a

ID: 55979 • Letter: G

Question

Genetic Practice Questions
1.Which of the following is not an epigenetic mark?
a. Histone methylation

b. Histone acetylation

c. DNA methylation

d. DNA acetylation

e. Histone phosphorylation

2.Royal jelly has some compound that inhibits an enzyme called _________

a. cytosine acetylase

b. cytosine phosphatase

c. cytosine methyltransferase

d. cytosine deacetylase

3.Two organisms with identical genotypes can sometimes exhibit strikingly different phenotypes because of differences in their epigenetic marks.

True
False

1. d. DNA acetylation

Epigenetic marks mainly modify the function of the tagged proteins and influence gene expression as well.

2. c. cytosine methyltransferase

Inhibition of cytosine methyltransferase results in altered patterns in DNA methylation.

3. True

This occurs because epigenetic marks not directly governed by the genetic code.

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