8.3 DNA Replication
Quiz
•
Biology
•
7th - 12th Grade
•
Medium
Lillian Reynolds
Used 59+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process that makes an exact copy of a cell’s DNA is called
conservation.
preservation.
replication.
synthesis.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the main functions of DNA polymerase?
breaks hydrogen bonds and exposes bases
holds DNA strands apart and attracts bases
zips and unzips the double-stranded DNA
binds nucleotides and corrects base pair errors
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the main functions of helicase?
breaks hydrogen bonds and exposes bases
holds DNA strands apart and attracts bases
forms hydrogen bonds to make double-stranded DNA
binds nucleotides and corrects base pair errors
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the main functions of single stranded binding proteins?
breaks hydrogen bonds and exposes bases
holds DNA strands apart
forms hydrogen bonds to make double-stranded DNA
binds nucleotides and corrects base pair errors
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following events occurs directly after a DNA molecule is unzipped?
Mismatched nucleotide bases are identified and replaced.
Free-floating nucleotides pair up with exposed bases.
Identical double-stranded DNA molecules are formed.
Enzymes break hydrogen bonds between base pairs.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The process of making new DNA molecules is semiconservative. This means that every new DNA molecule is composed of
two completely identical strands of DNA.
one original and one new strand of DNA.
one strand of DNA and one strand of RNA.
two strands that mix original and new DNA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When new DNA molecules are formed, almost all errors are detected and fixed by
the correct nucleotide.
the sugar-phosphate backbone.
DNA polymerase.
one DNA strand.
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