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Structure and replicatuon of DND

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Total cards: 10•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (10)

#1
Front (Question)

Name the repeating units that make up a molecule of DNA

Back (Answer)

Nucleotides

#2
Front (Question)

Shape of DNA is described as

Back (Answer)

double helix

#3
Front (Question)

Base pairing rules for DNA

Back (Answer)

Adenine (A) - Thymine (T) Guanine (G) - Cytosine (C)

#4
Front (Question)

Why are strands of DNA described as antiparallel

Back (Answer)

they run in opposite directions 5-3 3-5

#5
Front (Question)

5 Substances required for DNA replication

Back (Answer)

• Primers • Nucleotides • DNA polymerase • Ligase • ATP

#6
Front (Question)

Why does the lagging strand need to be copied in fragments

Back (Answer)

DNA polymerase can only add DNA nucleotides in one direction (5-3)

#7
Front (Question)

What end does DNA polymerase add new nucleotides

Back (Answer)

3’

#8
Front (Question)

The small section of DNA need by DNA polymerase to start replication

Back (Answer)

primer

#9
Front (Question)

What does DNA Polymerase do

Back (Answer)

it joins fragments of DNA together on the lagging strand

#10
Front (Question)

What does ligase do

Back (Answer)

Bonds nucleotides into the backbone of a new DNA strand