Which of the Following Is True About Repressor Interaction with the Gal

question 11

Multiple Choice

Which of the following is true about repressor interaction with the gal operator?

• A)The repressor binds the operator and causes looping of the DNA.
• B)Binding of the operator does not prevent transcription.
• C)There is no contact with the major grooves.
• D)The repressor binds the operator and causes looping of the DNA and binding of the operator does not prevent transcription are correct.
• E)Binding of the operator does not prevent transcription and there is no contact with the major grooves are correct.

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Definitions:

Lytic Bacteria

Lytic bacteria are those that enter a host cell, reproduce by utilizing the cell's resources, and eventually cause the host cell to burst (lyse), releasing new bacterial cells.

Viral Lytic Cycle

The process by which a virus reproduces itself inside a host cell, ultimately causing the cell to burst and release new virus particles.

Viral Lysogenic Cycle

A mode of viral reproduction that involves the integration of the viral genome into the host cell's DNA, lying dormant before eventually entering the lytic cycle to produce new virions.

Reverse Transcriptase

An enzyme that transcribes RNA into DNA, used by retroviruses to integrate their genetic material into the host's DNA.