Alleles always occur

• singly (alone)

• in pairs (groups of 2)

• in triads (groups of 3)

• in tetrads (groups of 4)

A dominant allele is written as a(n)

• lower case letter

• upper case letter

• unicorn emoji

• question mark

A recessive allele is written as a(n)

• lower case letter

• upper case letter

• hashtag

• smiley face

In the Greek language, "homo" means

• same

• different

• human

• mojo

In the Greek language, "hetero" means

• same

• different

• burrito

Example of homozygous genes are (select two)

• FF

• ff

• Ff

An example of a heterozygous gene is

• FF

• ff

• Ff

Tags

NGSS.HS-LS3-2

An example of a homozygous recessive gene is

• Dd

• DD

• dd

• DAB

Tags

NGSS.HS-LS3-2

An example of a homozygous dominant gene is

• Dd

• DD

• dd

• DAB

Tags

NGSS.HS-LS3-2

Phenotype or Genotype?
Eye color

• Phenotype 
• Genotype