1.2 Structure And Replication Of DNA

Question 1

Stand of nucleus acid running from a sugar to phosphate

Answer 1

3’-5’

Question 2

DNA base that pairs with thymine

Answer 2

Adenine (A)

Question 3

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

Answer 3

Antiparallel

Question 4

Nitrogenous substance that is a component of DNA nucleotides

Answer 4

Base

Question 5

DNA base that pairs with guanine

Answer 5

Cytosine (C)

Question 6

Pentose sugar that is a component of DNA nucleotides

Answer 6

Deoxyribose

Question 7

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

Answer 7

DNA

Question 8

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

Answer 8

DNA polymerase

Question 9

The three-dimensional shape of a DNA molecule

Answer 9

Double helix

Question 10

DNA base that pairs with cytosine

Answer 10

Guanine (G)

Question 11

Weak chemical link joining complementary base pairs in DNA

Answer 11

Hydrogen bond

Question 12

DNA stand that is replicated in fragments

Answer 12

Lagging strand

Question 13

DNA strand that is replicated continuously

Answer 13

Lead strand

Question 14

Enzyme that joins DNA fragments

Answer 14

Ligase

Question 15

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

Answer 15

Nucleotide

Question 16

Component of DNA nucleotide

Answer 16

Phosphate

Question 17

Short complementary strand of DNA

Answer 17

Primer

Question 18

Formation of copies of DNA molecules

Answer 18

Replication

Question 19

Strongly bonded strand of DNA

Answer 19

Sugar-phosphate backbone

Question 20

DNA strand on which a complementary copy is made

Answer 20

Template strand

Question 21

DNA base that pairs with adenine

Answer 21

Thymine (T)