Indicate true (T) and false (F) statements below regarding RNA editing. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTF.
( ) RNA editing in animal cells mainly takes place through adenine or cytosine deamination.
( ) RNA editing can change the pattern of pre-mRNA splicing.
( ) RNA editing in coding regions can result in changes in the protein sequence.
( ) Retroviruses such as HIV encode RNA-editing components to confront the host defense mechanisms.

Question

Indicate true (T) and false (F) statements below regarding RNA editing. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTF.
( )	RNA editing in animal cells mainly takes place through adenine or cytosine deamination.
( )	RNA editing can change the pattern of pre-mRNA splicing.
( )	RNA editing in coding regions can result in changes in the protein sequence.
( )	Retroviruses such as HIV encode RNA-editing components to confront the host defense mechanisms.

Quizplus · Accepted Answer

Two principal types of mRNA editing in animals are the deamination of adenine to produce inosine and, less frequently, the deamination of cytosine to produce uracil. Both types can have profound effects on the meaning of the RNA message, including changing the pattern of pre-mRNA splicing or changing the amino acid sequence of the protein coded by the mRNA. RNA from some retroviruses, including the human immunodeficiency virus (HIV), is extensively edited by the host cell, presumably as part of a defense mechanism to hold the virus in check.

Indicate True (T) and False (F) Statements Below Regarding RNA