1.2 - Structure And Replication Of DNA

Question 1

Strand of nucleic acid running from a sugar to a 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 strand 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)