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- 1. Multiple Choice
Which choice describes a chromosome in a prokaryotic cell?
linear in the nucleus
circular in the nucleus
linear in the cytoplasm
circular in the cytoplasm
- 2. Multiple Choice
What is the correct description of eukaryotic chromosomes?
many linear pieces of DNA in the cytoplasm
many linear pieces of DNA in the nucleus
one circular piece of DNA in the cytoplasm
many circular pieces of DNA in the nucleus
- 3. Multiple Choice
What is the process for making another DNA copy of a chromosome?
replication
transcription
translation
chromatin
- 4. Multiple Choice
Which choices describe DNA replication?
semiconservative
produces two pieces of DNA identical to the original
products are half original and half new
all of the above
- 5. Multiple Choice
Where in the cell does DNA replication occur?
always the cytoplasm
always the nucleus
in the cytoplasm in eukaryotes and the nucleus in prokaryotes
in the cytoplasm in prokaryotes and the nucleus in eukaryotes
- 6. Multiple Choice
What is the enzyme responsible for DNA replication?
DNA polymerase
RNA polymerase
ribosome
nucleolus
- 7. Multiple Choice
What does DNA polymerase do?
connects sugars and phosphates with weak hydrogen bonds
connects sugars and phosphates with strong covalent bonds
connects bases with strong hydrogen bonds
connects bases with strong covalent bonds
- 8. Multiple Choice
What are the 2 functions of DNA polymerase?
makes DNA and RNA
makes DNA and protein
makes DNA and fixes its mistakes
makes RNA and protein
- 9. Multiple Choice
When in the cell cycle is DNA replication?
S phase of interphase
Go of interphase
mitosis
meiosis
- 10. Multiple Choice
What is the structure of the DNA during DNA replication?
wrapped around histones in chromatin form
tightly coiled into chromosomes
just as it appears in a karyotype
DNA has no structure during replication
- 11. Multiple Choice
What is the process of making an RNA copy of a gene?
replication
transcription
translation
nucleosomes
- 12. Multiple Choice
Where does transcription take place in a cell?
always in the nucleus
always in the cytoplasm
in the nucleus in eukaryotes and the cytoplasm in prokaryotes
in the cytoplasm in eukaryotes and the nucleus in prokaryotes
- 13. Multiple Choice
What enzyme is responsible for transcription?
DNA polymerase
RNA polymerase
ribosomes
nucleolus in the nucleus
- 14. Multiple Choice
Which of the following describes the product of transcription?
contains ribose and U''s
contains deoxyribose and T's
contains ribose and T's
contains deoxyribose and U's
- 15. Multiple Choice
Which of the following describes the products of transcription?
long, double stranded RNA
short, double stranded DNA
long, single stranded RNA
short, single stranded RNA
- 16. Multiple Choice
What is the first step in both replication and transcription?
DNA is unzipped
weak hydrogen bonds are broken
DNA strands separate
all of the above
- 17. Multiple Choice
In replication, ______________ DNA strands are copied and in transcription ____________________ DNA strands are copied.
only one of the, both
both, only one of the
both, both
only one of the, only one of the
- 18. Multiple Choice
Following transcription in eukaryotes, the RNA
stays in the nucleus
is made into mRNA and goes to the cytoplasm
goes directly to the cytoplasm without changes
goes back to the nucleus for changes
- 19. Multiple Choice
mRNA is
used as a template to make protein
part of a ribosme
a small molecule used by the ribosome and is not made into protein
all of the above
- 20. Multiple Choice
rRNA is
used as a template to make protein
part of a ribosome
a small molecule used by the ribosome and is not made into protein
all of the above
- 21. Multiple Choice
tRNA is
used as a template to make protein
part of a ribosome
a small molecule used by the ribosome and is not made into protein
all of the above
- 22. Multiple Choice
What happens to an mRNA when the protein it is used to make is no longer needed?
it is broken down into amino acids and they are reused
it is broken down into nucleotides and they are reused
it is broken down into glucose and reused
it goes back to the nucleus
- 23. Multiple Choice
Where are rRNA and tRNA made in the cell?
the nucleolus in the cytoplasm
the nucleolus in the mitochondria
the nucleolus in the nucleus
always in the cytoplasm
- 24. Multiple Choice
What is the direction of synthesis for both DNA and RNA?
5' to 3' for both
3' to 5' for both
5' to 3' for DNA and 3' to 5' for RNA
3' to 5' for DNA and 5' to 3' for RNA
- 25. Multiple Choice
How many molecules of DNA polymerase are replicating DNA per origin?
1
2
3
4
- 26. Multiple Choice
Which of the following enzymes is responsible for breaking weak hydrogen bonds between bases in replication?
helicase
topoisomerase
DNA polymerase
ligase
- 27. Multiple Choice
Which of the following enzymes is responsible for protecting DNA from breakage during replication?
helicase
topoisomerase
DNA polymerase
ligase
- 28. Multiple Choice
What would happen to DNA if single stranded binding protein was not present during DNA replication?
All the bases would pair up again spontaneously.
It would break.
It would be replicated.
DNA polymerase would make mistakes more frequently.
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