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DNA

Total questions: 44

Worksheet time: 44mins

Name
Class
Date
1.

Which two scientists created the model of DNA that is currently used?

a)

Watson

b)

Crick

c)

Avery

d)

Jones

2.

Which three of the following make up nucleotides?

a)

Base

b)

Sugar

c)

Phosphate

d)

Protein

3.

In DNA, which base pairs with Thymine?

a)

Adenine

b)

Cytosine

c)

Guanine

d)

Uracil

4.

In DNA, which base pairs with Guanine?

a)

Adenine

b)

Thymine

c)

Cytosine

d)

Uracil

5.

In RNA, which base pairs with Adenine?

a)

Thymine

b)

Cytosine

c)

Guanine

d)

Uracil

6.

What is the structure of DNA called?

a)

Twisted Matrix

b)

Double Helix

c)

Hydrogen Bond

d)

Single Helix

7.

Which of the following is NOT a step in DNA replication?

a)

Breaking hydrogen bonds

b)

'Unzipping' DNA strand

c)

Pairing nucleotides

d)

Adding new sugars

8.

What is the name for a long strand of DNA that contains genes?

a)

Chromosome

b)

Nucleus

c)

Ribosome

d)

Mitochondria

9.

What are the largest genetic structures in the cell?

a)

Chromosomes

b)

Ribosomes

c)

Proteins

d)

Grana

10.

How many copies of each chromosome are present?

a)

2

b)

23

c)

4

d)

46

11.

What is the name of a unit of DNA that codes for a polypeptide?

a)

Gene

b)

Protein

c)

Chromosome

d)

RNA

12.

Which two of the following components make up the sides of a double helix?

a)

Sugars

b)

Phosphates

c)

Bases

d)

Genes

13.

What type of bonds hold nitrogenous bases together?

a)

Hydrogen

b)

Covalent

c)

Ionic

d)

Metallic

14.

Which rule states that Purine bases pair with Pyrimidine bases?

a)

Chargaff's Rule

b)

Watson's Rule

c)

Crick's Rule

d)

Franklin's Rule

15.

Half of each new DNA strand is old and half is brand new.

This is referred to as _________________ replication.

a)

Semi-Conservative

b)

Semi-Preserved

c)

Partial

d)

Conservative

16.

What sugar is present in DNA?

a)

Deoxyribose

b)

Ribose

c)

Glucose

d)

Sucrose

17.

What sugar is present in RNA?

a)

Deoxyribose

b)

Ribose

c)

Glucose

d)

Sucrose

18.

Which of the following enzymes breaks hydrogen bonds?

a)

DNA Helicase

b)

DNA Primase

c)

DNA Ligase

d)

DNA Polymerase

19.

What structure is formed as DNA 'unzips'?

a)

Replication Fork

b)

Replication Strand

c)

Replication Bond

d)

Replication Divide

20.

Which enzyme creates an RNA primer?

a)

DNA Primase

b)

DNA polymerase

c)

DNA Helicase

d)

DNA Ligase

21.

Which enzyme binds to the strand and adds new bases?

a)

DNA Primase

b)

DNA Polymerase

c)

DNA Helicase

d)

DNA Ligase

22.

The leading strand undergoes...

a)

Continuous Replication

b)

Discontinuous Replication

23.

The lagging strand undergoes...

a)

Continuous Replication

b)

Discontinuous Replication

24.

Okazaki fragments are formed on the...

a)

Leading Strand

b)

Lagging Strand

25.

Which enzyme seals up the new DNA sequences?

a)

DNA Primase

b)

DNA Polymerase

c)

DNA Helicase

d)

DNA Ligase

26.

What type of RNA carries the DNA's code to the ribosome?

a)

Messenger RNA

b)

Transfer RNA

c)

Ribosomal RNA

27.

What type of RNA carries amino acids to the ribosome?

a)

Messenger RNA

b)

Transfer RNA

c)

Ribosomal RNA

28.

What type of RNA is part of the ribosome?

a)

Messenger RNA

b)

Transfer RNA

c)

Ribosomal RNA

29.

During Protein Synthesis, which step includes DNA code being copied to mRNA in the nucleus?

a)

Transcription

b)

Translation

30.

During Protein Synthesis, which step includes RNA being copied into amino acid code at a ribosome?

a)

Transcription

b)

Translation

31.

How many bases make up a codon?

a)

1

b)

2

c)

3

d)

4

32.

What is the purpose of protein synthesis?

a)

Copy DNA

b)

Make proteins

c)

Create energy

d)

Move proteins

33.

Mutations are...

a)

Changes in genetic material

b)

Changes in physical appearance

c)

Changes in a population

d)

Changes in a species

34.

What type of mutation changes one base?

a)

Point Mutation

b)

Frameshift Mutation

c)

Inversion Mutation

d)

Deletion Mutation

35.

What type of mutation inserts or deletes a nucleotide base?

a)

Substitution

b)

Frameshift

c)

Inversion

d)

Translocation

36.

What type of mutation removes a part of a chromosome?

a)

Deletion

b)

Duplication

c)

Inversion

d)

Translocation

37.

What type of mutation repeats a part of a chromosome?

a)

Deletion

b)

Duplication

c)

Inversion

d)

Translocation

38.

What type of mutation changes the order of a chromosome?

a)

Deletion

b)

Duplication

c)

Inversion

d)

Translocation

39.

What type of mutation moves a part from one chromosome to another?

a)

Deletion

b)

Duplication

c)

Inversion

d)

Translocation

40.

What is the term for DNA that is created by putting together pieces from different organisms

a)

Recombinant DNA

b)

Selective DNA

c)

Regenerative DNA

d)

Restriction DNA

41.

A restriction enzyme is used to...

a)

Cut DNA

b)

Bond DNA

c)

Exchange DNA

d)

Amplify DNA

42.

Which procedure is used to separate DNA pieces by size?

a)

Gel Electrophoresis

b)

Polymerase Chain Reaction

c)

DNA Sequencing

d)

Selective Breeding

43.

Which procedure is used to copy a piece of DNA many times very quickly?

a)

Gel Electrophoresis

b)

Polymerase Chain Reaction

c)

DNA Sequencing

d)

Selective Breeding

44.

Which procedure is used to change genes over time to incorporate desired traits?

a)

Gel Electrophoresis

b)

Polymerase Chain Reaction

c)

DNA Sequencing

d)

Selective Breeding

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