Genotype, Phenotype, & Punnett Squares

Front

What is the physical appearance of an organism called?

Back

Phenotype

Front

Which genotype represents homozygous recessive?

Back

tt

Front

What is the dominant trait in pea seeds?

Back

Yellow pea seeds

Front

What does the genotype Aa represent?

Back

Heterozygous

Front

If two brown-eyed parents with genotype Bb have a baby, what is the chance the baby has blue eyes?

Back

25%

Front

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

Back

Genotype

Front

What does homozygous mean?

Back

Having two identical alleles for a trait (e.g., TT or tt).

Front

What does heterozygous mean?

Back

Having two different alleles for a trait (e.g., Tt).

Front

In a Punnett square, what do the letters represent?

Back

The alleles of the parents.

Front

What is a Punnett square used for?

Back

To predict the genetic outcomes of a cross between two organisms.