Punnett Squares 1

Front

What is the physical appearance of an organism called?

Back

Phenotype

Front

What is the probability of the offspring showing the dominant trait in a typical Punnett square cross?

Back

75%

Front

In a Punnett square, if T = tall and t = short, what genotype is represented by the combination of two recessive alleles?

Back

tt

Front

What is the term for a genotype that has one dominant and one recessive allele, such as Aa?

Back

Hybrid

Front

In a heterozygous genotype, which allele takes over and shows itself in the phenotype?

Back

Dominant

Front

What is the term for an organism that has two identical alleles for a trait?

Back

Homozygous

Front

What is the term for an organism that has two different alleles for a trait?

Back

Heterozygous

Front

If a plant has the genotype TT, what will its phenotype be?

Back

Tall

Front

If a plant has the genotype tt, what will its phenotype be?

Back

Short

Front

In a Punnett square, what does each box represent?

Back

A possible genotype of the offspring.