Genetics/Heredity

Front

What is heredity?

Back

The passing down of traits from parents to children.

Front

What is the genotype for a pea plant heterozygous for round seeds (R) and homozygous recessive for green seeds (y)?

Back

Rryy

Front

If you are a boy, what percent of your genes did you get from your dad?

Back

50%.

Front

What is a dihybrid cross?

Back

A genetic cross that involves two traits, each represented by two alleles.

Front

In a dihybrid cross, what is the expected phenotypic ratio of the offspring?

Back

9:3:3:1.

Front

What does it mean for a plant to be homozygous?

Back

It has two identical alleles for a trait.

Front

What does it mean for a plant to be heterozygous?

Back

It has two different alleles for a trait.

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism.

Front

What is a genotype?

Back

The genetic constitution of an individual.

Front

What is the probability of obtaining a tall plant from a cross between two heterozygous tall plants?

Back

75% tall and 25% short.