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DNA Structure Post-Test

Total questions: 17

Worksheet time: 17mins

Name
Class
Date
1.

Adenine pairs with ______________ .

Group of answer choices

a)

Guanine

b)

Cytosine

c)

Thymine

2.

Here are the steps of replication. Which answer choice lists them in the correct order?


I. Two identical strands of DNA are formed.

II. Free-floating nucleotides in the cell match up to the divided DNA and DNA polymerase connects the bonds.

III. DNA “unzips”

a)

II, III, I

b)

III, II, I

c)

I, II, III

3.

Guanine pairs with ______________.

Group of answer choices

a)

Cytosine

b)

Thymine

c)

Adenine

4.

The structure of DNA can be described as a _________________.

Group of answer choices

a)

Semiconservative

b)

Antiparallel

c)

Double helix (Twisted ladder)

5.

Three parts of a nucleotide: sugar, phosphate, and ________________________.

Group of answer choices

a)

Nitrogen base

b)

Amino acid

c)

Monosaccharide

6.

DNA replication results in two DNA molecules.

Group of answer choices

a)

Each one with one new strand and one original strand.

b)

One with two new strands and the other with two original strands.

c)

Each with two new strands.

7.

Where do you find DNA in a eukaryotic cell?

Group of answer choices

a)

Ribosome

b)

Mitochondria

c)

Nucleus

8.

Which is the subunit of DNA and what is the function of the subunit?

Group of answer choices

a)

Nucleotides that stores the instructions for making proteins.

b)

Monosaccharides that will be used to provide quick energy to the cell.

c)

Lipids that stores energy and provides padding.

9.

What does DNA stand for?

Group of answer choices

a)

Deoxyribose Nucleic Acid

b)

Do No Action

c)

Ribose Nucleic acid

10.

Which is the correct order for the complementary DNA strand for the following:

A C G T A G

Group of answer choices

a)

T G G A C G

b)

G T A G A T

c)

T G C A T C

11.

DNA has been described as a double helix. How can you describe a double helix?

Group of answer choices

a)

It looks like a regular ladder

b)

It looks like a twisted ladder

c)

It is a single-stranded twisted string

12.

Where in the cell does DNA replication occur?

Group of answer choices

a)

Nucleus

b)

Mitochondria

c)

Ribosome

13.

Which makes up the backbone or the sides of DNA?

Group of answer choices

a)

phosphates and nitrogen bases

b)

sugars and phosphates

c)

sugars and nitrogen bases

14.

What is the first step in DNA replication?

Group of answer choices

a)

new bases are added to each strand of DNA

b)

genetic information is carried out to the ribosome

c)

hydrogen bonds break and DNA unzips

15.

Which is the correct sequence of bases that would pair with A T C G A T during DNA replication?

a)

CGATCG

b)

TAGCTA

c)

UAGCUA

16.

What is the purpose of DNA replication?

Group of answer choices

a)

to make mRNA

b)

to carry amino acids to the ribosome

c)

to copy DNA for cellular division

17.

What is formed from DNA replication?

Group of answer choices

a)

two single-stranded DNA molecules

b)

one double-stranded DNA molecule

c)

two double-stranded DNA molecules