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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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What are answers 4-6?

Transcribed Image Text:Fill in the blanks in the following statements about DNA replication.
3'
Parental strand
5'
2. Then
3. The enzyme DNA
daughter strand.
4. A binds with
KEY
CAGTGTAACGGTGA
Adenine
Guanine
GTCAC
LLLLL
Cytosine
Thymine
5'
This represents DNA replication.
1. The replication bubble opens up as the hydrogen bonds between bases are broken by the enzyme
Daughter strands
Incoming
nucleotide
GTCACATTGCCACT
GGTGA
Parental strand 3'
C binds with
5. What enzyme prevents recoiling of the DNA strand while synthesis is occurring?
DE
Segment 2
proteins keep the two helixes apart.
adds the new nucleotides to the parental strand to produce the
DNA polymerase
-DNA nucleotide
Segment 1
DNA polymerase
?
Refer to the picture above and indicate your answers.
6. DNA polymerase is adding the nucleotides to the top strand continuously--that means the top strand is the
(leading or lagging) strand.
7. The bottom strand has short segments which are added discontinuously. This is the (leading, lagging) strand.
fragments. They are joined
8. The fragments of DNA in the lagging strand are known as
together by the enzyme DNA
9. We call the replication of DNA semi-conservative. Why?
10. When during the cell cycle does this DNA replication occur?_
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