Genetics: Punnett Squares and Pedigrees

Front

What is the probability of heterozygous offspring from a monohybrid cross?

Back

50%

Front

The physical appearance of a trait is known as the-

Back

phenotype

Front

How many individuals are there in the 3rd generation of a pedigree with 2 parents and 2 offspring?

Back

4

Front

How many people in this whole pedigree have the trait/disease if 4 individuals are affected?

Back

4

Front

If Purple Flowers (P) are dominant over white flowers (p), what would the phenotype be for a Pp genotype?

Back

Purple flowers

Front

What is the term for the genetic makeup of an organism?

Back

genotype

Front

In a Punnett square, what does each box represent?

Back

A possible genotype of offspring.

Front

What is a pedigree chart used for?

Back

To track the inheritance of traits through generations.

Front

What does it mean if an organism is homozygous for a trait?

Back

It has two identical alleles for that trait.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present; recessive alleles require two copies to express their trait.