Genetics Vocab Quiz

What is the term for an individual with two identical alleles for a particular gene?

• heterozygous

• dominant

• recessive

• homozygous

What is the term for an individual with two different alleles for a particular gene?

• polygenic

• monohybrid

• homozygous

• heterozygous

What is the process by which cells divide to produce gametes?

• apoptosis

• meiosis

• fertilization

• mitosis

What is the name for a reproductive cell (sperm or egg) that carries half the number of chromosomes as a regular cell?

• zygote

• embryo

• germ cell

• gamete

What are the non-sex chromosomes called?

• autosomes

• sex chromosomes

• gametes

• homologous chromosomes

What are the chromosomes that determine an individual's sex called?

• genetic chromosomes

• reproductive chromosomes

• sex chromosomes

• gender chromosomes

What is the term for the physical expression of a trait?

• phenotype

• inheritance

• mutation

• genotype

How many recessive alleles for a trait must an organism inherit in order to show that trait?

• 1

• 2

• 3

• 4

What is an example of a heterozygous genotype?

• AA

• aa

• AAaa

• Aa

When 2 dominant alleles are both expressed are said to be

• codominant

• incomplete dominant

• dominant