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