1.2 Structure And Replication Of DNA Flashcards Preview

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Flashcards in 1.2 Structure And Replication Of DNA Deck (21)
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1

Stand of nucleus acid running from a sugar to phosphate

3’-5’

2

DNA base that pairs with thymine

Adenine (A)

3

Parallel strands in DNA that run in opposite directions in terms of chemical polarity

Antiparallel

4

Nitrogenous substance that is a component of DNA nucleotides

Base

5

DNA base that pairs with guanine

Cytosine (C)

6

Pentose sugar that is a component of DNA nucleotides

Deoxyribose

7

Deoxyribonucleic acid; molecule that holds the genetic code in living organisms

DNA

8

Enzyme that unwinds and unzips DNA; adds free nucleotides during DNA replication

DNA polymerase

9

The three-dimensional shape of a DNA molecule

Double helix

10

DNA base that pairs with cytosine

Guanine (G)

11

Weak chemical link joining complementary base pairs in DNA

Hydrogen bond

12

DNA stand that is replicated in fragments

Lagging strand

13

DNA strand that is replicated continuously

Lead strand

14

Enzyme that joins DNA fragments

Ligase

15

Component of DNA consisting of a deoxyribose sugar, a phosphate group and a base

Nucleotide

16

Component of DNA nucleotide

Phosphate

17

Short complementary strand of DNA

Primer

18

Formation of copies of DNA molecules

Replication

19

Strongly bonded strand of DNA

Sugar-phosphate backbone

20

DNA strand on which a complementary copy is made

Template strand

21

DNA base that pairs with adenine

Thymine (T)