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NCEA Level 1 Genetics - Practicing Alleles Basics (Vocab)

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

How would you describe the following pair of alleles/genotype?

BB

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

2.

How would you describe the following pair of alleles/genotype?

Aa

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

3.

How would you describe the following pair of alleles/genotype?

ff

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

4.

What is meant by the term homozygous?

a)

The pair of alleles in a genotype are both dominant or both recessive

b)

The pair of alleles in a genotype are both dominant

c)

The pair of alleles in a genotype are both recessive

d)

The pair of alleles in a genotype are different

5.

What is meant by the term heterozygous?

a)

The pair of alleles in a genotype are both dominant or both recessive

b)

The pair of alleles in a genotype are both dominant

c)

The pair of alleles in a genotype are both recessive

d)

The pair of alleles in a genotype are different

6.

What is an allele?

a)

A version of a gene

b)

A section of DNA that codes for a trait

c)

The physical expression of a trait

d)

A large complex molecules that holds genetic information

7.

What is a gene?

a)

A version of a gene

b)

A section of DNA that codes for a trait

c)

The physical expression of a trait

d)

A large complex molecules that holds genetic information

8.

What is a phenotype?

a)

A version of a gene

b)

A section of DNA that codes for a trait

c)

The physical expression of a trait

d)

A pair of alleles that code for a trait

9.

What is a genotype?

a)

A version of a gene

b)

A section of DNA that codes for a trait

c)

The physical expression of a trait

d)

A pair of alleles that code for a trait

10.

How would you describe the following pair of alleles/genotype?

DD

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

11.

How would you describe the following pair of alleles/genotype?

Kk

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

12.

How would you describe the following pair of alleles/genotype?

hh

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

13.

What is meant by the term recessive?

a)

An trait that is only expressed if a pair of the allele is present

b)

A trait that is always expressed if it is present

c)

The physical expression of a trait

d)

A pair of alleles that code for a trait

14.

What is meant by the term dominant?

a)

An trait that is only expressed if a pair of the allele is present

b)

A trait that is always expressed if it is present

c)

The physical expression of a trait

d)

A pair of alleles that code for a trait