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Genetics and Heredity Vocabulary Review 2024

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.

Different forms of genes

a)

Allele

b)

Genotype

c)

Phenotype

d)

Trait

2.

A chart that tracks a particular trait in a family

a)

Punnett Square

b)

Pedigree

3.

Illnesses or disorders caused by an abnormal gene (Examples: Downs and Turner Syndrome -wrong number of chromosomes, Recessive traits - Sickle Cell Anemia, Cystic Fibrosis)

a)

Mutation

b)

Genetic Disorder

c)

Vaccine

d)

Covid 19

4.

Long strands of DNA that contain thousands of genes

a)

Genes

b)

DNA

c)

Chromosomes

d)

Protein

5.

Two identical alleles

a)

Heterozygous

b)

Homozygous

6.

Someone who has one recessive allele for a trait but doesn’t show it.

a)

Dominant

b)

Recessive

c)

Mutant

d)

Carrier

7.

Only see this trait if two are present

a)

Dominant

b)

Recessive

8.

The molecule that is the base of all chromosomes

a)

Carbon

b)

DNA

c)

Water

d)

Ribosomes

9.

23 pairs or 46 chromosomes

a)

Number of human chromosomes in each cell

b)

Number of nuclei in each human cell

c)

Number of letters in the alphabet

d)

Number of days in the month of February

10.

The allele combination for a trait (ie. Bb or bb.)

a)

Genotype

b)

Phenotype

11.

When a chromosome is not copied correctly

a)

Identical twins

b)

Fraternal twins

c)

Genetic Disorder

d)

Mutation

12.

The likelihood that an event will occur

a)

Probability

b)

Ratio

13.

Two different alleles

a)

Heterozygous

b)

Homozygous

14.

The passing of traits from parent to offspring

a)

Genetics

b)

Heredity

c)

Biology

d)

Zoology

15.

Part of chromosome that controls a trait (30,000 in humans)

a)

Allele

b)

Protein

c)

Gene

d)

Nucleus

16.

A chart that shows all possible combinations of alleles between two organisms

a)

Punnett Square

b)

Pedigree

17.

The visibly expressed trait (ie. blue eyes)

a)

Genotype

b)

Phenotype

18.

Human chromosomes that determine gender

a)

C and D

b)

O and P

c)

X and Y

d)

A and B

19.

Always shows its trait

a)

Dominant

b)

Recessive

20.

A characteristic caused by genetics or the environment

a)

Allele

b)

Trait

c)

Gene

d)

Vacuole