Chapter 10:
From Genes to Proteins
Practice Test
1.
What type of mutation occurs when just one nucleotide is substituted for another during DNA replication?
a.
deletion
b.
insertion
c.
point mutation
d.
mutagen
Hint
2.
What is a new organism that contains genetic material from two or more species?
a.
clone
b.
plasmid
c.
transgenic organism
d.
oncogene
Hint
3.
What is the RNA transcribed from DNA that codes for a particular polypeptide?
a.
transfer RNA
b.
messenger RNA
c.
ribosomal RNA
d.
replicated RNA
Hint
4.
RNA consists of a sugar, a phosphate group, and four nitrogen bases, including adenine, guanine, cytosine, and ____________ .
a.
serine
b.
alanine
c.
thymine
d.
uracil
Hint
5.
What type of mutation occurs when a nucleotide is left out during replication of DNA?
a.
deletion
b.
point mutation
c.
insertion
d.
mutagen
Hint
6.
Besides a main chromosome, bacteria have small circular pieces of DNA in their cytoplasm. What are these small, circular pieces of DNA called?
a.
nuclei
b.
clones
c.
plasmids
d.
Golgi bodies
Hint
7.
What is RNA?
a.
ribonucleic acid
b.
deoxyribonucleic acid
c.
a codon
d.
a nucleotide
Hint
8.
What is a set of three bases, specific to the type of amino acid tRNA carries, that is found on the other side of a tRNA molecule?
a.
an anticodon
b.
a stop codon
c.
a start codon
d.
a polypeptide
Hint
9.
Suppose you have a section of DNA that consists of the following sequence of bases: AGC TTA TCC. What would be the corresponding sequence of bases on a complementary RNA strand?
a.
UCG AAT ACC
b.
TCG AAT AGG
c.
TCG UUA TCC
d.
UCG AAU AGG
Hint
10.
Every gene is a segment of a DNA molecule that consists of a chain of _________ .
a.
phenotypes
b.
nucleotides
c.
polypeptides
d.
proteins
Hint
