Which One of the Following Nuclear RNA Processing Events Is

question 65

Multiple Choice

Which one of the following nuclear RNA processing events is correct?

• A) Many RNA transcripts have a cap of 7-methyl-guanine added to the end of the RNA.
• B) The splice sites in precursors to mRNA are initially recognized by an enzyme that marks them by methylation.
• C) A poly G tail of up to about 200 guanine residues is added to the end of most pre-mRNA molecules.
• D) The 5' -end of many RNAs is capped using a 5 -5 link.
• E) After synthesis of RNA on the DNA template, ribothymidine residues in the RNA are demethylated to uridine residues.

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Definitions:

Personality Disorders

Types of mental disorders characterized by enduring maladaptive patterns of behavior, cognition, and inner experience.

Oedipal

Relating to the Oedipus complex, a concept in psychoanalytic theory referring to a child's unconscious sexual desire for the opposite-sex parent and jealousy toward the same-sex parent.

Electra Complex

The condition in which, according to Sigmund Freud, girls want to seduce their fathers to gain what they truly desire: a penis. By analogy to a character in several Greek tragedies.

Attachment Theory

A development of the psychoanalytic approach by John Bowlby. According to this view, children form attachments with their parents that become the child’s internalized model for all subsequent relationships. Difficulties in such attachments form the basis for later problems.