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Worksheets

Warm up Friday 2/19

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

Suppose F = freckles and f = no freckles


Which combination represents a person homozygous recessive for the trait of freckles?

a)

Ff

b)

FF

c)

ff

2.

Suppose F = freckles and f = no freckles.


Which combination represents a person who is heterozygous for the trait of freckles?

a)

Ff

b)

FF

c)

ff

3.

Which traits only show up when a person inherits them from both parents?

a)

Dominant

b)

Recessive

c)

Incomplete

d)

Strong

4.

The root word hetero means

a)

the same

b)

different

5.

Dimples is a dominant trait. If two people heterozygous for having dimples mate, what percent chance do their children have of not having dimples?

a)

0%

b)

25%

c)

75%

d)

100%

6.

Purple flowers on a pea plant are dominant to white flower. If a homozygous (pure ) purple plant was pollinated with a heterozygous (hybrid) purple plant, what is the chance of the new plants having white flowers?

a)

0%

b)

25%

c)

75%

d)

100%

7.

If the alleles for one parent are Gg and the other parents alleles are gg, what is the percent chance of their offspring having the alleles Gg?

a)

0%

b)

25%

c)

50%

d)

75%

8.

The karyotype shown here indicate the person would be a

a)

healthy girl

b)

healthy boy

c)

abnormal girl

d)

abnormal boy

9.

How many chromosomes should be in a sex cell?

a)

23

b)

46

c)

92

d)

None of these