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DNA form/function review

Total questions: 17

Worksheet time: 9mins

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.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
6.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
7.

How many chromosomes do human cells have?

a)

46

b)

23

c)

2

d)

44

8.
What is a gene?
a)
A bundle (like a hot dog bun) that the DNA is packed into
b)
something inside the nucleus
c)
a piece of DNA
d)
all of your DNA
9.

Bundled up, organized DNA is called a

a)

gene

b)

trait

c)

chromosome

d)

nucleotide

10.

Who were the first guys to build a model of a DNA molecule?

a)

Rosalind Franklin

b)

James Watson

c)

Gregor Mendel

d)

Francis Crick

11.
What kind of information does DNA carry?
a)
genetic
b)
nuclear
c)
cell structure
d)
it doesn't carry any info
12.

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

a)

chromosome

b)

gene

c)

sugar phosphate

d)

adenine

13.

A is pointing at...

a)

nucleus

b)

chromosome

c)

gene

d)

DNA

14.

B is pointing at....

a)

nucleus

b)

chromosome

c)

gene

d)

DNA

15.

C is pointing at...

a)

nucleus

b)

chromosome

c)

gene

d)

DNA

16.

What does this photo represent?

a)

Cells

b)

Chromosomes

c)

Virus

d)

Nuclei

17.

Who was the first person to see the shape of DNA on an Xray?

a)

James Watson

b)

Francis Crick

c)

Maurice Wilkins

d)

Rosalind Franklin