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DNA Form & Function

Total questions: 19

Worksheet time: 19mins

Name
Class
Date
1.

Which of the following best describes the shape of a DNA molecule?

a)

double helix

b)

ribonucleic

c)

twisty misty

d)

matrix punnet

2.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
3.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
4.

What determines which trait is expressed by a gene?

a)

The order of the sugar and phosphate

b)

The order of the nitrogen bases

c)

The amount of chromosomes in a cell

d)

The number of times the gene is seen in the chromosomes

5.

Within which organelle is DNA usually found in?

a)

ribosome

b)

vacuole

c)

chloroplast

d)

nucleus

6.

How many chromosomes can be found within each human cell?

a)

46

b)

23

c)

2

d)

44

7.

Term for neatly coiled packages of DNA

a)

genes

b)

traits

c)

chromosomes

d)

nucleotides

8.

A section of DNA that codes for a trait is called a

a)

chromosome

b)

gene

c)

sugar phosphate

d)

adenine

9.

Organisms whose cells do not have a nucleus are called _____.

a)

Eukaryotes

b)

Multicellular

c)

Unicellular

d)

Prokaryotes

10.

Term for organisms whose cells contain a nucleus

a)

Archaea

b)

Bacteria

c)

Prokaryotes

d)

Eukaryotes

11.

What is the basic unit of all life?

a)

Chloroplast

b)

Organelle

c)

Organ

d)

Cell

12.

Which sequence of DNA bases would pair the following code

ATG TGA CAG

a)

ATG TGA CAG

b)

TAC ACT GTC

c)

GTA AGT GAC

d)

CAT TCA CTG

13.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
14.

In a molecule of double-stranded DNA, the amount of adenine present is always equal to the amount of

a)

cytosine

b)

guanine

c)

thymine

d)

uracil

15.

What is the corresponding code for the following strand of DNA:

AAT CAT GGA

a)

AAT CAT GGA

b)

TTA GTA CCT

c)

UUA GUA CCU

d)

GGA TAU CUA

16.

Nucleotides are made up of a sugar, phosphate, and..?

(clue: structure #II)

a)

amino acid

b)

nitrogenous base

c)

cholesterol

d)

fatty acid

17.

Which is in order from largest to smallest structure?

a)

chromosome, DNA strand, gene, nucleotide

b)

chromosome, gene, DNA strand, nucleotide

c)

gene, DNA strand, chromosome, nucleotide

d)

DNA strand, chromosome, gene, nucleotide

18.

Which of the following is correctly matches: ATT GTA CGA

a)

TAA CAT GCT

b)

ATT GTA CGA

c)

TAA GTA TCG

d)

GCC ACG TAC

19.

What do genes do?

a)

make proteins

b)

store energy

c)

create covalent bonds

d)

create hydrogen bonds