Punnett Squares

Front

What does 'aa' always show up as?

Back

Recessive

Front

What are the phenotype percentages of the offspring from a cross of Aa x Aa? (A-Brown fur color; a-white fur color)

Back

75 % Brown fur and 25% White fur

Front

What is the term for what you see, or the physical appearance of an organism?

Back

Phenotype

Front

What are Aa, DD, bB, yy examples of?

Back

Genotypes

Front

How are dominant alleles represented?

Back

By a capital letter

Front

What is the term for the genetic makeup of an organism?

Back

Genotype

Front

What is the expected phenotype ratio from a monohybrid cross?

Back

3:1 ratio (dominant:recessive)

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous has two identical alleles; heterozygous has two different alleles.

Front

What is a Punnett Square used for?

Back

To predict the genotypes and phenotypes of offspring from genetic crosses.

Front

What does a capital letter represent in genetics?

Back

A dominant allele.