Chapter 10:
From Genes to Proteins
Practice Test
1.
What are external agents that cause mutations?
a.
point mutations
b.
insertions
c.
deletions
d.
mutagens
Hint
2.
What is RNA?
a.
ribonucleic acid
b.
a nucleotide
c.
deoxyribonucleic acid
d.
a codon
Hint
3.
What is a new organism that contains genetic material from two or more species?
a.
oncogene
b.
plasmid
c.
transgenic organism
d.
clone
Hint
4.
What is the synthesis of a polypeptide from the information carried by an mRNA molecule?
a.
transcription
b.
translocation
c.
translation
d.
replication
Hint
5.
Every gene is a segment of a DNA molecule that consists of a chain of _________ .
a.
phenotypes
b.
proteins
c.
nucleotides
d.
polypeptides
Hint
6.
What is a mistake made during the replication of genetic material?
a.
a repetition
b.
translation
c.
a mutation
d.
transcription
Hint
7.
RNA consists of a sugar, a phosphate group, and four nitrogen bases, including adenine, guanine, cytosine, and ____________ .
a.
uracil
b.
serine
c.
thymine
d.
alanine
Hint
8.
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
9.
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 polypeptide
c.
a start codon
d.
a stop codon
Hint
10.
What are the sets of nucleotides in an original mRNA molecule that code for amino acids?
a.
tRNA
b.
rRNA
c.
introns
d.
exons
Hint
