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Allele, Genotype & Phenotype

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

A segment of DNA that codes for a trait

a)

Allele

b)

Gene

c)

Phenotype

d)

Characteristics

2.

When an organism has two different alleles, It is called

a)

Recessive

b)

Dominant

c)

Homozygous

d)

Heterozygous

3.

Recessive Traits show up

a)

Always

b)

Only when they are two

4.

Dominant Traits show up

a)

Always

b)

Only when they are two

5.

Blonde hair is an example of which of the following

a)

Phenotype

b)

Genotype

c)

Allele

6.

If your genotype is Bb, what type of trait would you express as a phenotype?

a)

Dominant

b)

Recessive

c)

Both the dominant and recessive traits

7.

Which of the following is the correct definition for a phenotype?

a)

The expression of one of your parent's traits

b)

The physical expression of a gene. (Characteristics)

c)

The set of genes in our DNA which is responsible for a particular trait

d)

A strand of DNA made up of multiple mutations.

8.

The two types of alleles are (select two)

a)

Dominant

b)

Recessive

c)

Chromosome

d)

Nuclei

9.

Which of the following is the correct definition for a genotype?

a)

The physical expression of a gene. (Characteristics)

b)

A strand of DNA made up of multiple mutations.

c)

The set of genes in our DNA which is responsible for a particular trait.

d)

The expression of one of your parents traits.

10.

 What is an allele?

a)

A unit of genetic information that you receive from your parents

b)

The trait expressed by an organism.

c)

The combination of genetic information from your parents.