Punnett Square Practice

Front

What does a Punnett square predict?

Back

The Punnett square predicts the ratio of genotypes in the offspring based on the genotypes of the parents.

Front

What is the dominant trait in the cross of tallness (H) and shortness (h)?

Back

Tallness (H) is the dominant trait.

Front

What is a genotype? Give an example.

Back

A genotype is the genetic makeup of an organism. Examples include Aa, BB, or hh.

Front

What is a phenotype? Give an example.

Back

A phenotype is the observable physical characteristics of an organism. Example: blue eyes.

Front

What is the probability of obtaining a tall plant from a cross of two heterozygous tall plants (Hh)?

Back

The probability is 3:4 for tall offspring.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Ff.

Front

What is the phenotype of offspring with genotype Hh?

Back

The phenotype is tall.

Front

If a plant has the genotype BB, what is its phenotype?

Back

The phenotype is tall, as B is dominant.

Front

What is the ratio of genotypes in a monohybrid cross?

Back

The ratio of genotypes in a monohybrid cross can be 1:2:1.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the physical expression of that genotype.