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Steps of Punnett Square Exit Ticket

Total questions: 14

Worksheet time: 23mins

Name
Class
Date
1.

How is a dominant gene represented?

a)

With a lowercase letter

b)

With a capital letter

c)

With a number

d)

With a symbol

2.

Which genotype represents a recessive trait?

a)

DD

b)

Dd

c)

dd

d)

dD

3.

What is the first step in setting up a Punnett square?

a)

Write the alleles for parent 1

b)

Set up a 2 by 2 Punnett square

c)

Determine the phenotype

d)

Cross the alleles

4.

What is the shape of a Punnett square?

a)

Circle

b)

Triangle

c)

Square

d)

Rectangle

5.

Which allele is considered dominant in the given example?

a)

s

b)

S

c)

ss

d)

Ss

6.

What is the genotype of a homozygous dominant parent?

a)

ss

b)

Ss

c)

SS

d)

sS

7.

What does each square in a Punnett Square represent?

a)

A possible genotype of the offspring

b)

A possible phenotype of the offspring

c)

A possible mutation

d)

A possible environmental factor

8.

What is the significance of the alleles in a Punnett Square?

a)

They determine the genetic makeup of the offspring

b)

They determine the color of the offspring

c)

They determine the size of the offspring

d)

They determine the age of the offspring

9.

What is the physical appearance of an organism called?

a)

phenotype

b)

genotype

c)

allele

d)

gene

10.

Where are the parents placed on the Punnett Square?

a)

Top & Side

b)

4 squares in middle

c)

Only the top

d)

Only the Side

11.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
12.
What genotype would go in box 2?
a)
BB
b)
Bb
c)
bb
13.
What genotype would go in box 3?
a)
BB
b)
Bb
c)
bb
14.
What genotype would go in box 1?
a)
BB
b)
Bb
c)
bb