Genotype, Phenotype, & Punnett Squares

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene.

Front

What is the genotype of a homozygous dominant flower with red petals?

Back

RR

Front

What is the genotype of a heterozygous organism?

Back

Aa

Front

If red petals are dominant, what would a homozygous recessive flower's genotype look like?

Back

rr

Front

In a Punnett square, what does each box represent?

Back

A possible genotype of offspring.

Front

What is the phenotype of an organism?

Back

The physical expression of the genes.

Front

What does homozygous mean?

Back

Having two identical alleles for a trait.

Front

What does heterozygous mean?

Back

Having two different alleles for a trait.

Front

If T = tall and t = short, what is the phenotype of TT?

Back

Tall.

Front

In a Punnett square, what is the purpose of the parental genotypes?

Back

To predict the possible genotypes of offspring.