Chapter 9:
Expressing Genetic Information
Practice Test
1.
What is the part of a protein sequence that directs the cell to transport a certain protein to the correct location?
a.
the frame shift
b.
the exon
c.
the intron
d.
the signal sequence
Hint
2.
Which of these is NOT one of the stages in transcription?
a.
initiation
b.
elongation
c.
promotion
d.
termination
Hint
3.
Starting from the initiation point, the grouping of bases into codons in translation is called the reading frame. What occurs if this starting point is moved by one or two nucleotides?
a.
reverse transcription
b.
a signal sequence
c.
protein transport
d.
a frame shift
Hint
4.
Proteins that will become part of membranes or leave the cell are made on ribosomes that ________________ .
a.
are bound to Golgi bodies
b.
are bound to the endoplasmic reticulum
c.
are found in the cytoplasm
d.
are attached to the nuclear membrane
Hint
5.
In what type of viral infection is the viral DNA inserted into the cellular DNA and copied when the cell replicates?
a.
lytic infections
b.
lysogenic infections
c.
endemic infections
d.
short-term infections
Hint
6.
Ribosomes are made out of proteins and ______________ .
a.
messenger RNA
b.
DNA
c.
transfer RNA
d.
ribosomal RNA
Hint
7.
Where in the cell does ribosomal RNA synthesis occur?
a.
at ribosomes on the endoplasmic reticulum
b.
on the origin point on the cell membrane
c.
at the nucleolus in the nucleus
d.
at the ribosomes in the cytoplasm
Hint
8.
What is a nonliving particle of nucleic acid, protein, and sometimes a membrane, that can replicate only inside a living cell?
a.
prokaryote
b.
virus
c.
bacterium
d.
eukaryote
Hint
9.
What is a chemical signal given off by cells in one part of an organism that regulate the behavior of cells in another part of the organism?
a.
structural protein
b.
catalyst
c.
enzyme
d.
hormone
Hint
10.
What is the attachment of the correct amino acid to its tRNA molecule?
a.
anticodon pairing
b.
tRNA binding
c.
anticodon connection
d.
tRNA charging
Hint
