Genetics- Monohybrid Punnett Squares

Front

What are recessive alleles written using?

Back

Lowercase letters.

Front

What does AA represent in genetics?

Back

Homozygous dominant.

Front

In a Punnett Square, what is the probability of an offspring being white if purple (P) is dominant to white (p)?

Back

0%.

Front

If T represents tall and t represents short, what is the missing genotype in the Punnett Square if the other genotypes are Tt and Tt?

Back

tt.

Front

What is a phenotype?

Back

The observable physical characteristics of an organism, such as black fur.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by letters (e.g., AA, Tt).

Front

What does heterozygous mean?

Back

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

Front

What does homozygous recessive mean?

Back

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

Front

What is the purpose of a Punnett Square?

Back

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

Front

What is the phenotypic ratio of a monohybrid cross between two heterozygous parents (Tt x Tt)?

Back

3 tall : 1 short.