DNA sequences near operons that regulate transcription.

Cell differentiation is

when different cells perform different functions.

Which of the following describes RNA?

RNA is usually single-stranded and contains the base uracil

Which of the following statements about the genetic code is true?

Some codons specify the same amino acid.

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Chapter 13

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RNA, transcription, translation, and mutation Quiz to review for Chapter 13 in College Prep High School Biology course. Spring 2016.

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Questions 24

Answers

1
Translation, also called protein synthesis, occurs at the
ribosome.
cytoplasm.
nucleus.
mitochondria.
2
Which of the following are a frameshift mutation?
deletion.
substitution.
chromosomal translocation.
insertion.
3
An expressed gene
codes for just one amino acid
functions as a promoter
is transcribed into RNA
is made of mRNA
4
Promoters are
genes that code for individual proteins
small molecules that bind with repressor proteins.
DNA sequences near operons that regulate transcription.
proteins that bind with DNA and prevent transcription.
5
A point mutation changes
one chromosome.
one codon.
one amino acid.
on nucleotide base.
6
What chapter is this test on?
14
12
13
I literally have no idea.
7
In messenger RNA, each codon specifies a particular
enzyme
nucleotide
amino acid
promoter
8
The number of codons in the genetic code is
20
4
64
3
9
To turn on the lactose-digesting enzymes of E. coli, the lactose must first
bind to the DNA of the bacterium
separate from the repressor
bind to the repressor
initiate the synthesis of mRNA
10
The process by which the genetic code of DNA is copied into a strand of RNA is called
transformation
replication
transcription
translation
11
RNA interference happens when
miRNA blocks gene expression.
RNA is digested.
RNA is copied.
RNA interferes with tumor growth.
12
Blocking gene expression in eukaryotes with microRNA strands is called RNA
interference
digestion
transcription
inhibition
13
How many lambs did Mr. Sharp's most recently pregnant ewe have?
three healthy boys.
three piglets.
two boys and one girl.
three healthy girls.
14
How do RNA and DNA differ?
RNA contains ribose and thymine
RNA contains adenine and ribose
RNA contains uracil and ribose
RNA contains uracil and deoxyribose
15
A substance that can cause a change in the DNA code of an organism is called a
nitrogenous base
mutagen
toxin
nucleotide
16
The process of making proteins on the ribosome based on instructions from mRNA is called
molecular biology
transformation
translation
transcription
17
Cell differentiation is
when all cells perform the same function.
when different cells perform different functions.
when cells replicate.
happens in a single-celled organism.
18
Which of the following describes RNA?
RNA is made in the nucleus of eukaryotes and stays there
RNA is usually double-stranded and contains the base thymine
RNA is usually single-stranded and contains the base uracil
RNA is longer than DNA and uses five bases to encode info
19
A single-base mutation in a region of DNA could transcribe the DNA sequence CAGTAT into mRNA
GUAAUA
GUCAUA
GTCUTU
GTCATA
20
Changes in DNA sequences that affect genetic information are known as
translation shifts
base mispairing
replication errors
mutations
21
Hox genes control
eye development.
how many wings you have.
how many toes you have.
body segmentation.
22
Which of the following statements about the genetic code is true?
Every codon specifies a different amino acid.
Some codons have no function at all.
Some codons specify the same amino acid.
A codon can specify more than one amino acid.
23
A group of genes that are regulated together is called a(n)
allele
promoter
intron
operon
24
Look at your codon chart. Which of the following is a stop codon?
UGA
UAA
UUU
UAG

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