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Worksheets

Heredity and Pedigrees

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

A chart that displays family relationships indicating traits or disorders

a)

Punnett square

b)

Pedigree

c)

Karyotype chart

2.

In a pedigree chart, men are represented by

a)

Circles

b)

Diamonds

c)

Squares

3.

In a pedigree chart, women are represented by

a)

Circles

b)

Diamonds

c)

Squares

4.

In a pedigree, individuals that are affected are represented as shapes that are

a)

Not shaded

b)

Fully shaded

c)

Half shaded

5.

Each generation in a pedigree is marked with

a)

Arabic numerals

b)

Names of individuals

c)

Roman numerals

6.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
7.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
8.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
9.

Objective #13

This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of the father (square) in generation 1?

a)

Aa

b)

AA

c)

aa

d)

A?

10.

Individuals that are shaded in have premature hair whitening. Is this trait dominant or recessive? How do you know?

a)

Dominant because it skips generations

b)

Dominant because it is present in every generation

c)

Recessive because it skips generations

d)

Recessive because it is present in every generation.