BSCS Biology: A Molecular Approach

Chapter 8: The Cell Cycle

DNA Replication

1.
What term is used to describe the orientation of the sugar-phosphate backbones of the two DNA strands?
A)antilateral
B)antiparallel
C)perpendicular
D)contiguous
2.
During which phase of the cell cycle does DNA replicate?
A)M phase
B)S phase
C)G2
D)G1
3.
The illustration

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demonstrates how _____ move out in both directions from each replication origin.
A)nucleotides
B)polymerases
C)nucleosomes
D)replisomes
4.
What are formed during DNA Synthesis when the new DNA quickly binds to histone proteins?
A)chromosomes
B)replisomes
C)phosphates
D)nucleosomes
5.
Most mutations are known as mismatches because they consist of base pairs that cannot form what kind of bonds?
A)hydrogen
B)sugar-phosphate
C)peptide
D)adenine
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