Punnett Squares and Pedigrees

Front

What do squares represent in a pedigree chart?

Back

Males

Front

What do circles represent in a pedigree chart?

Back

Females

Front

What does homozygous recessive mean?

Back

An organism with two identical recessive alleles (e.g., gg).

Front

What does the notation AA indicate?

Back

Two dominant alleles.

Front

What is a Punnett square used for?

Back

To show all the possible genotypes of a genetic cross.

Front

What is the physical appearance of an organism called?

Back

Phenotype.

Front

What is the genetic makeup of an organism called?

Back

Genotype.

Front

What does a hybrid organism mean?

Back

An organism with one dominant and one recessive allele (e.g., Gg).

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 only express their trait if two copies are present.

Front

What is the purpose of a pedigree chart?

Back

To track the inheritance of traits through generations.