Punnett Squares, Pedigrees and Natural Selection

Front

What does an open circle represent in a pedigree chart?

Back

Not Affected Female

Front

Which of the following is a PHENOTYPE?

Back

Red hair

Front

How many kids did the mother and father from the first generation have?

Back

4

Front

What is the genetic makeup of an organism usually represented by alleles (Ex. AA, Aa, or aa)?

Back

Genotype

Front

What does a filled in square represent in a pedigree chart?

Back

Affected Male

Front

What is a Punnett Square used for?

Back

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

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.