How Does a Molecule of RNA Polymerase "Know" Which of the Two

question 24

Multiple Choice

How does a molecule of RNA polymerase "know" which of the two strands of DNA it should use as a template strand?

• A) RNA polymerase recognizes the start codon.
• B) RNA polymerase binds to the promoter in a specific orientation that determines which DNA strand it will be able to "read."
• C) The ribosome binds to the promoter in a specific orientation that determines which DNA strand it will be able to "read."
• D) RNA polymerase binds randomly to one strand or the other, so that roughly half of its attachments to DNA result in the production of the correct mRNA.

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Definitions:

Pervasive

Having the tendency to spread widely throughout an area or group of people.

Latency Period

A phase in psychosexual development, occurring from about age 6 to puberty, characterized by a decrease in sexual interests and activities.

Psychosexual Stages

Psychosexual Stages is a Freudian theory describing how personality development occurs in five stages (oral, anal, phallic, latency, and genital) associated with erogenous zones.

Phallic Stage

In Freudian psychoanalytic theory, the third stage of psychosexual development (ages 3-6) where the libido's focus is on the genital area, and the child develops sexual identification with the same-sex parent.