Structure & DNA Replication Quiz

Structure & DNA Replication Quiz

9th Grade

20 Qs

quiz-placeholder

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Structure & DNA Replication Quiz

Structure & DNA Replication Quiz

Assessment

Quiz

Biology

9th Grade

Practice Problem

Medium

Created by

Kimberley Harper

Used 151+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the long name for DNA?

deoxynucleic acid
deoxyribonucleic acid
denatured ribonucleic acid
deoxyribonuclear acid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following correctly describes the structure of DNA?

Single-stranded helix with uracil
Double helix with adenine pairing with thymine
Triple helix with random base pairing
Single strand with random nucleotides

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What forms the backbone of DNA?

Nitrogenous bases
Hydrogen bonds
Sugar molecules
Sugar-phosphate groups

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What holds complementary bases together in DNA?

Phosphodiester bonds
Hydrogen bonds
Covalent bonds
Ionic bonds

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which best describes the antiparallel nature of DNA?

Strands run in opposite directions
Bases pair randomly
Strands are parallel
Bases are identical

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the structure of RNA?

Double-stranded helix
Triple-stranded molecule
Single-stranded molecule
Circular molecule

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If one strand of a DNA molecule contains the letters ATTCG, what would be the letters in the complementary strand?

ATTCG
TAAGC
CGGTA
UAAGC

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