Genotype

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

• 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.

Tags

NGSS.HS-LS3-1

Aa, DD, bB, yy are all examples of

• genotypes

• phenotypes

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive

• dominant

• lower case letter

• both 

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa

Which of the following genotypes is heterozygous?

• Bb

• BB

• bb

• B

An example of a heterozygous gene is

• FF

• ff

• Ff

An example of a homozygous recessive gene is

• Dd

• DD

• dd

• DAB

An example of a homozygous dominant gene is

• Dd

• DD

• dd

• DAB

Which of the following genotypes is homozygous recessive?

• Tt

• tt

• TT

• tT

Dominant alleles are represented by a:

• Male gene

• lowercase letter

• recessive trait

• capital letter