The ---> 5' Exonuclease Activity of DNA Polymerase I

question 85

Multiple Choice

The ---> 5' exonuclease activity of DNA polymerase I

• A) provides primers with free hydroxyl groups for chain extension.
• B) is similar to the mode of action of an RNA polymerase.
• C) helps remove RNA primers during replication.
• D) provides an error-correcting mechanism during replication and repair synthesis.
• E) prevents bidirectional replication of the genome.

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Definitions:

Articular Cartilage

A smooth, white tissue that covers the ends of bones where they come together to form joints.

Plantar Flexion

The movement of the foot that increases the angle between the sole of the foot and the back of the leg, like pointing the toes.

Dorsiflexion

The movement that elevates the foot upwards towards the shin, decreasing the angle between the dorsum of the foot and the leg.

Circumduction

A circular movement of a limb or eye where the end follows a circular path.