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Genetics Vocab

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

Which of the following is a different form of a gene?

a)

Trait

b)

Allele

c)

Genotype

d)

Homozygous

2.

What is best definition of phenotype?

a)

The genetic makeup of an organism

b)

The combination of alleles

c)

The physcial appearance of an organism

d)

A disease caused by mutations

3.

What is the best definition for genotype?

a)

The combination of alleles of a gene

b)

The physical appearance

c)

The trait

4.

What is the best definition for a dominant allele?

a)

An allele that is masked by the other allele

b)

The stronger allele

c)

The more popular allele

d)

An allele whose trait always shows present

5.

What is the best definition for a recessive allele?

a)

The allele that is masked, or covered up, by the other allele

b)

The weaker allele

c)

The less popular allele

d)

The allele whose trait always shows when present

6.

What is the best definition for homozygous

a)

A mixture that is the same throughout

b)

A gene containing two of the same alleles

c)

A gene containing two different alleles

d)

A mixture that is different throughout

7.

What is the best definition of heterozygous?

a)

A mixture that is the same throughout

b)

A gene containing two of the same alleles

c)

A gene containing two different alleles

d)

A mixture that is different throughout

8.

Dominant alleles are represented by what?

a)

I don't know what you are talking about

b)

A lowercase letter

c)

Any letter they want

d)

An uppercase letter

9.

Recessive alleles are represented by what?

a)

A small number

b)

A lowercase letter

c)

A BIG number

d)

An uppercase letter

10.

"Mr. Miller has bushy eyebrows" is an example of what?

a)

An allele combination

b)

A genotype

c)

A gene

d)

A phenotype

11.

There are so many types of dog hair! It can be curly, straight, wavy, short, long, and much more! In this example, what represents the gene being talked about?

a)

Hair type

b)

Curly hair

c)

Straight hair

d)

Short Hair

12.

There are so many types of dog hair! It can be curly, straight, wavy, short, long, and much more! In this example, what represents the alleles being talked about? Check all that apply!

a)

Hair type

b)

Curly hair

c)

Straight hair

d)

Wavy hair

13.

How many dominant alleles does it take for the dominant trait to be seen?

a)

5

b)

2

c)

1

d)

3

14.

How many recessive alleles need to be present for the recessive trait to be seen?

a)

1

b)

2

c)

3

d)

4

15.

Which of the following is Heterozygous? (Check all that apply)

a)

hh

b)

HH

c)

Hh

d)

hH

16.

Which of the following are homozygous? (check all that apply)

a)

HH

b)

Hh

c)

hH

d)

hh