The Epsilon (ε) Subunit of DNA Polymerase III of E

question 38

Multiple Choice

The epsilon (ε) subunit of DNA polymerase III of E. coli has exonuclease activity. How does it function in the proofreading process? The epsilon subunit ________.

• A) removes a mismatched nucleotide
• B) excises a segment of DNA around the mismatched base
• C) can recognize which strand is the template or parent strand and which is the new strand of DNA.
• D) adds nucleotide triphosphates to the 3' end of the growing DNA strand

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Definitions:

Genes

Sequences of DNA or RNA that code for proteins and determine the inherited traits and characteristics of an organism.

Umbilical Cord

The flexible cordlike structure connecting a fetus to the placenta, transporting nutrients and oxygen to and removing waste from the developing baby.

Newborns

Infants from birth to a few months old, characterized by rapid physical and cognitive development essential for initial survival and growth.

Embryonic Period

A phase of prenatal development occurring from the second to the eighth week post-conception, during which major organs and structures within the body begin to form.