The Unpacking of Heterochromatin into Euchromatin Does Not Immediately Result

question 31

Multiple Choice

The unpacking of heterochromatin into euchromatin does not immediately result in DNA transcription because

• A) Barr bodies are still present.
• B) histones still block the binding of RNA polymerase to the promoter.
• C) euchromatin is always transcriptionally inactive.
• D) transcription factors still block the binding of RNA polymerase to the promoter.
• E) heterochromatin contains DNA with accessible promoters. Even euchromatin is inaccessible unless the nucleosomes are moved to make the promoter accessible to RNA polymerase.

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Definitions:

Erikson's Third Stage

In Erik Erikson's theory of psychosocial development, this stage, occurring between the ages of three and six years, focuses on the conflict between initiative versus guilt.

Initiative Versus Guilt

A stage in Erik Erikson's theory of psychosocial development where children learn to plan and achieve goals while dealing with the risk of feeling guilty about their desires and efforts.

Slow and Cautious

A mindful approach where actions are taken with deliberate thought to minimize risks or errors.

Lacking Initiative

The absence or deficiency in the willingness to take actions or steps towards achieving goals without being prompted by others.