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Non-Mendelian Inheritance

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

A species of plant produces different colors of flowers. Red, blue and purple. When the genes of the flowers are studied, the Red flowers have a RR genotype, the Blue flowers have a BB genotype, and the Purple flowers have a RB genotype. What pattern of inheritance does this follow?

a)

Mendelian

b)

Incomplete Dominance

c)

Codominance

d)

Sex-Linked

2.

A species of plant produces different colors of flowers. Red, blue and red/blue striped. When the genes of the flowers are studied, the Red flowers have a RR genotype, the Blue flowers have a BB genotype, and the Red and Blue striped flowers have a RB genotype. What pattern of inheritance does this follow?

a)

Mendelian

b)

Incomplete Dominance

c)

Codominance

d)

Sex-Linked

3.

In humans, some traits are carried on the X chromosome. What pattern of inheritance is this?

a)

Mendelian

b)

Incomplete Dominance

c)

Codominance

d)

Sex-Linked

4.

In pea plants, Purple flowers are dominant to white flowers. In a heterozygous individual, the flower is purple. The only way a flower can be white is if it has the 2 recessive alleles. What pattern of inheritance does this follow?

a)

Mendelian

b)

Incomplete Dominance

c)

Codominance

d)

Sex-Linked

5.

Select the Punnett square below that shows a trait following a pattern of CODOMINANCE.

a)
b)
c)
d)
6.

Select the Punnett square below that shows a trait following a pattern of INCOMPLETE DOMINANCE.

a)
b)
c)
d)
7.

Select the Punnett square below that shows a trait following a pattern of MENDELIAN INHERITANCE.

a)
b)
c)
d)
8.

Select the Punnett square below that shows a trait following a pattern of SEX-LINKED INHERITANCE.

a)
b)
c)
d)
9.

A female is a carrier of a sex-linked disease (muscular dystrophy) but does not have the disease. She has a child with a healthy man (not a carrier). Make a punnett square and determine what is the probability that they would have a daughter with the disease?

a)

100%

b)

75%

c)

25%

d)

0%

10.

A female is a carrier of a sex-linked disease (muscular dystrophy) but does not have the disease. She has a child with a healthy man (not a carrier). Make a punnett square and determine what is the probability that they would have a son with the disease?

a)

100%

b)

75%

c)

25%

d)

0%

11.

If flowers have the following phenotypes and genotypes, what is the phenotypic ratio of crossing a blue flower and a purple flower?

Blue = BB

Red = RR

Purple = BR

a)

2:2

Blue : Purple

b)

2:2

Red : Blue

c)

3:1

Purple : Blue

d)

4:0

Blue: Purple

12.

If flowers have the following genotypes and phenotypes, what is the probability of Striped flowers resulting from a cross of Red flowers and White flowers?

Red = RR

White = WW

Striped = RW

a)

0%

b)

25%

c)

50%

d)

100%

13.

In blood types, there are multiple alleles : A, B, O

What is the probability of a person with type AB blood having a child with type O blood?

a)

100%

b)

50%

c)

0%

d)

There is no way to tell.