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Sex-Linked & Incomplete Dominance

Total questions: 11

Worksheet time: 12mins

Name
Class
Date
1.

Colorblindness is a recessive X-linked disorder.

Which genotype represents a male with normal vision?

a)

XN YN

b)

Xn Yn

c)

XN Y

d)

Xn Y

2.
Which of the following genotypes belongs in the red box in the Punnett square?
a)
XBXb
b)
XbXb
c)
XbY
d)
XBY
3.
Different variations of a gene are called?
a)
Alleles
b)
DNA
c)
Chromosome
d)
Gene
4.

What would the genotype be of a colorblind male?

a)

XNY

b)

XNYn

c)

XnY

d)

XnYn

5.

The blending of two traits in which one is not completely dominant over the other is known as ---

a)

incomplete dominance

b)

codominance

6.

What type of inheritance pattern is shown here?

a)

Codominance

b)

Incomplete dominance

7.

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

a)

Incomplete dominance

b)

Codominance

8.

The green fish offspring in this image is an example of ---

a)

Incomplete dominance

b)

Codominance

9.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be black?

a)

25

b)

50

c)

75

d)

100

10.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be white?

a)

25

b)

50

c)

0

d)

100

11.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be gray?

a)

25

b)

50

c)

75

d)

100