Mendelian Genetics

Front

What is the definition of Phenotype?

Back

The physical appearance or visible traits of an organism, determined by its genotype.

Front

What is the definition of Genotype?

Back

The genetic makeup of an organism, consisting of the alleles inherited from its parents.

Front

What does Homozygous mean?

Back

Having two identical alleles for a particular gene (e.g., BB or bb).

Front

What does Heterozygous mean?

Back

Having two different alleles for a particular gene (e.g., Bb).

Front

If brown eyes (B) are dominant to green eyes (b), what percent of offspring from a Bb x Bb cross would be green-eyed?

Back

25%.

Front

In a cross of RRYY x rryy, what percent of offspring will have Round/Yellow seeds?

Back

100%.

Front

What fraction of offspring from the cross AaBB x Aabb will be heterozygous for both traits?

Back

1/2.

Front

In a cross of BbTt x BBtt, what percentage of the offspring will have black fur and long tails?

Back

50%.

Front

What is a Punnett square?

Back

A diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Front

What is the Law of Segregation?

Back

The principle that during the formation of gametes, the two alleles for a trait separate from each other.