Chapter 15

A mutation has occurred such that a snRNP cannot recognize the 5' splice site of an intron. What is the most likely effect that this mutation will have on the resulting protein?

The final protein will be longer than normal and non-functional

How do you know that the gene being transcribed in the animation is a prokaryote?

The initiation of transcription involves a sigma factor

Slipped strand mispairing may cause deletions resulting in

a frameshift mutation

After a tautomeric shift in adenine

adenine bonds with cytosine

Which of the following causes an extra copy of a chromosomal region to occur?

duplication

Which of the following occurs first in transcription?

formation of a holoenzyme

The segment of the DNA molecule where messenger RNA synthesis begins is called the

initiation site

When a chromosome is broken in two places and reconnected so that a region is flipped from the normal order, this is called

inversion

The Shine-Dalgarno sequence is found on the

mRNA

The amino acids carried by the transfer RNA are joined by

peptide bonds

The segment of the DNA molecule where messenger RNA synthesis begins is called the

promoter region

Translation is the synthesis of

proteins from mRNA

Which of the following occurs when a piece of one chromosome breaks off and is attracted to another chromosome?

simple translocation

The snRNPs are also called

snurps

The component that causes the synthesis of RNA to cease is known as the

transcription terminator

At the E site

transfer RNA is released

Splicing joins together

two exons

The assembly of transcription factors begins

upstream from the transcription start site

Translation is terminated when a stop codon is presented at the

A Site

New amino acids (other than initial f-Met) enter at which site?

A site

Which of the following best describes transcription?

DNA--> RNA

During slipped-strand mispairing, homologous chromosomes

Pair up with each other, but out of register

The transcription enzyme first attaches to the ______ of the gene.

Promoter

The enzyme that accomplishes transcription is termed

RNA Polymerase

Which of the following best describes translation?

RNA--> Protein