Free Printable DNA Structure, Function, and Replication

Worksheets

DNA Structure, Function, and Replication

Total questions: 27

Worksheet time: 2hrs 32mins

Name

Class

Date

Which of the following is not a component of DNA?

5 Carbon Sugar

Phosphate Group

Carbon Base

Nitrogen Base

Which of the following is not a nitrogen base found in DNA?

Thymine

Uracil

Guanine

Adenine

According to Chargaff's rule, Cytosine always pair with

Adenine

Uracil

Thymine

Gaunine

The twisted ladder shape of DNA is known as a

Double Helix

Triple Helix

Single Helix

Triple Helix

How is the instructions for your traits carried on a DNA molecule?

Sequence of the nitrogen bases

In the 5 Carbon Sugar

In the bond between the phosphate and the sugar

In the phosphate group

Which answer choice would by complementary (match up) with the DNA strand
ATGCATTCGA

ATGCATTCGA

TACGTAAGCT

TACCTAAGGA

ATGCCATGAA

DNA IS FOUND IN THE...

CYTOPLASM

NUCLEUS

A building block of DNA, consisting of a five-carbon sugar bonded to a nitrogenous base and a phosphate group.

Nucleus

Adenine

Thymine

Nucleotide

The base that pairs with Thymine in DNA. It's a purine.

adenine

cytosine

thymine

guanine

10.

The base that pairs with Cytosine in DNA. It's a purine

adenine

cytosine

thymine

guanine

11.

DNA is a

protein

nucleic acid

lipid

carbohydrate

12.

Part A of the diagram is a

Phosphate

Nucleic acid

Nitrogenous base

Deoxyribose sugar

13.

Part B of the diagram is a

Phosphate

Nucleic acid

Nitrogenous base

Deoxyribose sugar

14.

Part C of the diagram is a

Phosphate

Nucleic acid

Nitrogenous base

Deoxyribose sugar

15.

The four bases are

Adenine, Guanine, Cytosine and Uracil

Adenine, Guanine, Cytosine and Thymine

Adenine, Uracil, Cytosine and Thymine

Adenine, Guanine, Cytoplasm and Thymine

16.

DNA is held together by

ionic bonds

James Bonds

hydrogen bonds

covalent bonds

17.

Segments of DNA that code for (store the recipe for) making membrane proteins, enzymes, antibodies, structural proteins are called

genes

chromosomes

Cellular Cookbooks

proteins

18.

What is the base sequence of strand X?

A. G-T-A-C

B. T-G-C-A

C. G-T-C-A

D. A-T-C-G

19.

This enzyme is capable of breaking Hydrogen bonds found between the bases of DNA

Topoisomerase

DNA Helicase

DNA Polymerase

Exonuclease

20.

What is the purpose of DNA replication?

Cut the DNA

Make more cells

Apoptosis

Duplicate the DNA

21.

Why is it crucial that living things are able to replicate their DNA?

Each cell must have its own DNA

Less copies of DNA are needed when a new cell is created

A cell needs multiple copies of DNA

Only muscle cells need DNA

22.

Which enzyme is responsible for adding nucleotides?

Topoisomerase

DNA Polymerase

Ligase

Primase

23.

Each DNA molecule created contain one NEW strand and one OLD strand

True

False

24.

Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG

ATG TGA CAG

TAC ACT GTC

GTA AGT GAC

CAT TCA CTG

25.

order of replication

3, 4, 2, 1

3, 1, 4, 2

2, 1, 4, 3

3, 4, 1, 2

26.

A process in which DNA has the unique ability to make an exact copy of itself.

Replication

Translation

Transcription

27.

Why does DNA replicate?

To create another copy for the new cell

To create a duplicate copy in case the original gets damaged

To create a new copy to replace the damaged original

Reset

DNA Structure, Function, and Replication

Total questions: 27

Worksheet time: 2hrs 32mins

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