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Non Mendelian Inheritance Patterns and Pedigrees

Total questions: 28

Worksheet time: 28mins

Name
Class
Date
1.
What do you call the non-Mendelian inheritance pattern that states that neither trait is dominant and the traits appear to blend together?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
2.

What is this diagram called?

a)

karyotype

b)

pedigree

3.
How many children do #5 & #6 have?
a)
1 male child
b)
2 male and 2 female children
c)
2 male children
d)
1 daughter and 1 son
4.
What do the shaded shapes represent?
a)
normal individuals
b)
individuals who have the trait
c)
carriers
d)
deceased
5.

What gender of offspring are most often affected by sex-linked inheritance?

a)

males

b)

females

6.
The image shows the pattern of inheritance for colorblindness.  From this diagram we can tell that colorblindness is
a)
a codominant trait
b)
a sex-linked trait
c)
carried on the Y chromosome
d)
is associated with a dominant allele
7.
In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?
a)
complete dominance and recessiveness
b)
co-dominance
c)
incomplete dominance
d)
pleiotropy
8.
What do the circles represent in a pedigree chart?
a)
males
b)
females
c)
individuals with a disease
d)
children of either gender
9.

What percentage of the female offspring will be a carrier for this recessive disease?

a)

0%

b)

50%

c)

100%

d)

25%

10.
Looking at this pedigree, how many female family members are carriers?
a)
1
b)
3
c)
10
d)
7
11.

A chicken is black, white, or black and white. This inheritance pattern is

a)

Mendelian inheritance.

b)

incomplete dominance.

c)

codominance.

d)

sex-linked inheritance.

12.

A snapdragon is red, white, or pink. This inheritance pattern is

a)

Mendelian genetics.

b)

incomplete dominance.

c)

codominance.

d)

sex-linked inheritance.

13.

Colorblindness is more common in males because it is controlled by

a)

Mendelian inheritance.

b)

Incomplete dominance.

c)

codominance.

d)

Sex-linked inheritance.

14.

This trait is

a)

autosomal recessive.

b)

sex-linked.

c)

autosomal dominant.

15.

Generation 2 individual 3 is

a)

male.

b)

female.

16.
What percentage of the offspring will have this recessive disease?
a)
0%
b)
25%
c)
50%
d)
75%
17.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
18.
A normal human has ___ pairs of autosomes and ___ pair(s) of sex chromosomes.
a)
23,1
b)
22,1
c)
1, 22
d)
1, 23
19.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
20.

Hemophilia is a recessive x-linked disorder.

Which genotype represents a female who is a carrier for hemophilia?

a)

XHXh

b)

XhXh

c)

XHXH

d)

XhY

21.

Hemophilia is a recessive x-linked disorder.

Which genotype represents a male with hemophilia?

a)

XHXh

b)

XhXh

c)

XHY

d)

XhY

22.
What are the blood types of the possible children that a woman (type O) and man (type AB) can have?
a)
O and AB
b)
O and A
c)
O and B
d)
A and B
23.
A woman has type B blood and her husband has type O blood.  What must be the woman's genotype, if they have a child with type O blood?
a)
BO
b)
BB
c)
OO
d)
type B
24.
A rabbit with white fur was crossed with a rabbit with black fur.  The cross produced offspring with black and white fur. This type of inheritance is known as
a)
dihybrid recessive
b)
dominance
c)
codominance
d)
multiple alleles
25.

People with Type AB blood have two dominant alleles, IA and IB. Since the two alleles are equally dominant, they are called

a)

multiple alleles

b)

incomplete alleles

c)

codominant alleles

d)

sex linked alleles

26.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
27.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
28.

Examples include skin color and height (the individual's phenotype exists somewhere along a spectrum)

a)

polygenic inheritance

b)

multiple alleles

c)

linked genes

d)

incomplete dominance

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