Which one of the following statements most accurately describes methylation?
A. Methyl groups are most often added to
cytosines adjacent to guanine bases in or
near the promoter sequence, increasing the
probability of gene expression.
B. Methyl groups are most often added to
cytosines adjacent to guanine bases in or
near the promoter sequence, decreasing the
probability of gene expression.
C. Methyl groups are most often added to
adenine-thymine base pairs because they are
held by only two hydrogen bonds, and this
increases the probability of gene expression.
D. Methyl groups are most often added to
guanine-cytosine base pairs because they
are held by three hydrogen bonds, and this
decreases the probability of gene expression.
E. Methyl groups are added to most bases in
the promoter region of a specific gene so that
RNA polymerase and its associated proteins
will bind more efficiently.
B
You might also like to view...
For approximately how many years has
genetically engineered insulin been used to treat patients with diabetes?
a. 3 b. 10 c. 15 d. 30 e. 60
A genetic sex disorder that affects females only and consists of missing an X chromosome is known as ________
Fill in the blank(s) with the appropriate word.
You are at a restaurant and order the lobster for dinner. Your son yells, "No, don't eat that ________ please!"
A. arthropod B. echinoderm C. platyhelminthe D. annelid E. cnidarian
Which of the following tubes would you expect to have a higher MPN after subculture?
A) BGB broth tube B) EC broth tube