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DNA Replication Quiz

DNA Replication Quiz

Assessment

Interactive Video

Biology

9th - 10th Grade

Practice Problem

Hard

Created by

Evelyn Hayes

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary structure of DNA?

Single-stranded molecule

Double-stranded molecule

Triple-stranded molecule

Quadruple-stranded molecule

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of DNA helicase in DNA replication?

It forms phosphodiester bonds

It breaks hydrogen bonds between bases

It joins shorter DNA strands

It adds nucleotides to the growing strand

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What distinguishes an activated nucleotide from a normal nucleotide?

It has one phosphate group

It has two phosphate groups

It has no phosphate groups

It has three phosphate groups

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of reaction is involved in forming phosphodiester bonds?

Hydrolysis reaction

Oxidation reaction

Condensation reaction

Reduction reaction

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is semi-conservative replication?

Each new DNA molecule has two new strands

Each new DNA molecule has one old and one new strand

Each new DNA molecule has two old strands

Each new DNA molecule has no strands

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a mutation in the context of DNA replication?

An addition of extra DNA strands

A deletion of the DNA sequence

A perfect copy of the DNA sequence

A change in the DNA sequence

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of DNA ligase in DNA replication?

It breaks hydrogen bonds

It joins shorter DNA strands

It forms phosphodiester bonds

It adds nucleotides to the growing strand

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