2022 Genetics

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

The physical expression of a trait.

• phenotype

• genotype

• chromosome

• allele

Hair color and eye color are examples of a person's...

• recessive traits

• dominant alleles

• genotype

• phenotype

Genes always appear in pairs.

Your parents donate __ allele for every trait.

• 1

• 2

• 23

• 46

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

• The physical expression of a gene. (Characteristics)

• A strand of DNA made up of multiple mutations.

• The expression of one of your parents traits.

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

Alternative forms of a gene are called

• Alleles

• Homozygous

• DNA

• Genetics

Each identical side of a chromosome is the 

• centromere
• chromatin
• centriole
• chromatid

In the picture, Q is pointing to the center of the image. What is Q?

• centriole

• chromatid

• chromatin

• centromere

Genotype: TT

• homozygous dominant

• homozygous recessive

• heterozygous dominant

Genotype: Aa

• homozygous dominant

• homozygous recessive

• heterozygous dominant