7361888
Description
Quiz by Jack Alkema, updated more than 1 year ago
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Created by Jack Alkema
over 7 years ago
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Question 1
Question
DNA replication results in two DNA molecules,
Answer
-
each with one new strand and one original strand.
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each with two original strands.
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each with two new strands.
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one with two new strands and the other with two original strands.
Question 2
Question
During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases
Answer
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AGCTTG.
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GAUCCA.
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TCGAAC.
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GATCCA.
Question 3
Question
In Figure 12–5, what is adding base pairs to the strand?
Answer
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DNA polymerase
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chromatin
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histones
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nucleosomes
Question 4
Question
In Figure 12–5, what nucleotide is going to be added at point 1, opposite from thymine?
Answer
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cytosine
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guanine
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adenine
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thymine
Question 5
Question
In eukaryotes, DNA
Answer
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is circular.
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is located in the ribosomes.
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is located in the nucleus.
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floats freely in the cytoplasm.
Question 6
Question
In both prokaryotes and eukaryotes, how many copies of the chromosome are left after replication?
Answer
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1
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2
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3
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4
Question 7
Question
Which would be greater in a eukaryote than in a prokaryote?
Answer
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The number of replication forks on a strand of DNA.
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The total amount of adenines compared to thymines in a cell.
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The percentage of guanine nucleotides.
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The total number of base pairs in a chromosome.
Question 8
Question
In which cells is the accurate transmission of information most important?
Answer
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sex cells
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bone cells
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nerve cells
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skin cells
Question 9
Answer
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a RNA molecule.
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a protein molecule.
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a DNA molecule.
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an amino acid.
Question 10
Question
Which of the following is believed to be a key cause of immortalization of cancer cells in many tumours?
Answer
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Inactivation of the telomerase enzyme.
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Shortening of telomeres.
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Complete loss of telomeres.
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Reactivation of the telomerase enzyme.
Question 11
Question
The replication of a DNA molecule results in four copies of the same gene.
Answer
- True
- False
Question 12
Question
A DNA strand that had the sequence TACGTT would have a complimentary strand ATCGAT.
Answer
- True
- False
Question 13
Question
In eukaryotes, DNA replication proceeds in one direction along the DNA molecule.
Answer
- True
- False
Question 14
Question
Watson and Crick discovered that covalent bonds hold base pairs together at the center of a strand of DNA.
Answer
- True
- False
Question 15
Question
The tips of chromosomes are known as [blank_start]_________________________[blank_end].
Answer
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telomeres
Question 16
Question
Eukaryotic DNA molecules need to be carefully copied and sorted, especially in the formation of [blank_start]_________________________[blank_end] cells during meiosis.
Answer
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sex
Question 17
Question
A prokaryotic cell replicates its [blank_start]_________________________[blank_end] before it splits to form new cells, so that each new cell can have genetic material.
Answer
-
DNA
Question 18
Question
A difference between Eukaryotic DNA replication and prokaryotic DNA replication is that eukaryotic DNA replication has more [blank_start]______________________[blank_end].
Answer
-
points of origin
Question 19
Question
Identify and explain two roles of the molecule, represented by the spheres in Figure 12–10. [blank_start]d[blank_end]
Answer
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adds bases and proofreads
Question 20
Question
Where does DNA replication happen for prokaryotes and that of eukaryotes?
Answer
-
cytoplasm
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mitocondria
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chloroplast
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nucleus
Question 21
Question
When does DNA replication happen?
Answer
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G1 phase
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S phase
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G2 phase
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M phase
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