Punnett Squares

Question 1

Homozygous

Answer 1

Homozygous dominant = DD (takes over homozygous recessive and heterozygous)
Homozygous recessive = dd
Two things the same, labeled either D or R.

Question 2

Heterozygous

Answer 2

Heterozygous = Dd
Two things different/distinct. Doesn’t need to be labeled as D or R.

Question 3

Genotype

Answer 3

Genetic code of your cells. Exact pairing of alleles. Only pairing (BB, Bb, bb)

Question 4

Phenotype

Answer 4

Physical expression of genotype, not connected with the actual pairing of alleles.