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Chapter 14 - Mendel and Genetics

Total questions: 17

Worksheet time: 10mins

Name
Class
Date
1.

What does "true breeding" mean?

a)

homozygous dominant only

b)

homozygous recessive only

c)

homozygous dominant or homozygous recessive

d)

heterozygous only

2.

What is the correct order of generations? : (a)   -> (b)   ->​ (c)  

Choose from the below words
P
F1
F2
3.

How many different types of gametes can this organism produce: Aa

a)

1

b)

2

c)

3

d)

4

4.

How many different types of gametes can this organism produce: AaBb

a)

1

b)

2

c)

3

d)

4

5.

How many different types of gametes can this organism produce: AaBB

a)

1

b)

2

c)

3

d)

4

6.

How many different types of gametes can this organism produce: AABB

a)

1

b)

2

c)

3

d)

4

7.

What will be the ratio of offspring phenotypes in the following cross: Aa x Aa

a)

1:1

b)

3:1

c)

1:2:1

d)

9:3:3:1

8.

What will be the ratio of offspring genotypes in the following cross: Aa x Aa

a)

1:1

b)

3:1

c)

1:2:1

d)

9:3:3:1

9.

What will be the ratio of offspring phenotypes in the following cross: AaBb x AaBb

a)

1:1

b)

3:1

c)

1:2:1

d)

9:3:3:1

10.

The relationship in which the dominant allele makes enough functional protein to express the complete trait, even when it occurs alone in heterozygous individuals.

a)
Co-dominance
b)
Incomplete dominance
c)
Complete dominance
d)

Epistasis

11.

What is another way to describe the genotype of a heterozygous individual?

(a)  

12.

The idea that explains how a gene can exist in more than two allelic forms (ex. Blood type A can be expressed by the genotype I^A I^A or I^A i)

a)

Multiple Alleles

b)

Codominance

c)

Epistasis

d)

Pleiotropy

13.

The idea that explains how the ability of a gene can affect individuals in multiple ways. In other words, a single genotype can be the cause of more than one phenotype.

a)
pleiotropy
b)
epistasis
c)
codominance
d)
polygenic inheritance
14.

TRUE OR FALSE: Every single genotype has different phenotypic effects.

a)

True

b)

False

15.

Individuals who are heterozygous for sickle cell anemia is an example of which kind of dominance relationship?

a)

Complete Dominance

b)

Incomplete Dominance

c)

Codominance

d)

Nondominant

16.

The idea that a gene at one locus/location can have an effect on the expression of a gene at another locus.

a)

Pleiotropy

b)

Epistasis

c)

Incomplete Dominance

d)

Multiple Alleles

17.

The idea that multiple different genes, not alleles, are needed to produce a certain phenotype, like skin color or height.

a)

Environmental Factors

b)

Multiple Alleles

c)

Pleiotropy

d)

Polygenic Inheritance