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Quiz 1: The Mendelian Genetics

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.

What law states that two alleles for a trait separate during gamete formation?

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

d)

Law of X-Linked Traits

2.

Refer to the picture. What is the genotypic ratio of the offspring?

a)

1YY : 2Yy : 1yy

b)

4Yy

c)

3Yy : 1yy

d)

2Yy : 2yy

3.

Refer to the picture. What is the phenotypic ratio of the offspring?

a)

4 yellow

b)

2 yellow;2 green

c)

4 green

d)

3 yellow:1 green

4.

Refer to the picture. What would be the genotypes of the offspring for this Punnett square?

a)

4 YY

b)

1YY, 2Yy, 1yy

c)

2Yy, 2yy

d)

3 Yy, 1 yy

5.

Which genotype below represents homozygous dominant?

a)

bb

b)

Bb

c)

BB

d)

B

6.

What percentage of the offspring in the Punnett square exhibit (show) the dominant phenotype?

a)

25%

b)

50%

c)

75%

d)

100%

7.

The "father" of Mendelian genetics is....

a)

Charles Darwin

b)

Dwayne Johnson

c)

Gregor Mendel

d)

Gonzalo Pineda

8.

Genetics is the study of....

a)

How animals interact

b)

Genes and their inheritance

c)

Protecting the environment

d)

Human body systems

9.
What do we call the result of the genotype (for example, the color of the peas)?
a)
Visible traits
b)
Physiotrait
c)
Genotype 2
d)
Phenotype
10.

Rr is-

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

d)

none of these

11.
Which of the following best describes a GENOTYPE?
a)
The allele/genetic makeup of an organism.
b)
The physical expression of a trait.
12.
Which of the following is an example of a heterozygous genotype?
a)
RR
b)
Rr
c)
rr
13.
The dominant trait in this punnett square is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
14.

This crosses parents differing in two traits rather than one.

a)

Monohybrid cross

b)

Dihybrid cross

15.

What law states that one trait will mask another trait?

a)

Law of Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

d)

Law of X-Linked Traits