Punnett Squares and Genetics Flashcard

Front

What is a genotype?

Back

The genetic makeup of an organism.

Front

What is a phenotype?

Back

The physical appearance of an organism.

Front

What is the phenotype of the offspring from a cross of Aa x Aa?

Back

75% Brown Hair and 25% Blond Hair.

Front

What is the probability of obtaining a heterozygous offspring from a cross between two heterozygous parents (Aa x Aa)?

Back

Front

Which of the following is an example of a phenotype? Bb, Blue eyes, BB, bb?

Back

Blue eyes.

Front

What does a Punnett Square illustrate?

Back

The possible genetic combinations from a genetic cross.

Front

What is the purpose of using a Punnett Square?

Back

To predict the probability of offspring inheriting particular traits.

Front

What does homozygous mean?

Back

An organism with two identical alleles for a trait.

Front

What does heterozygous mean?

Back

An organism with two different alleles for a trait.

Front

What is the definition of allele?

Back

Different forms of a gene that can exist at a specific locus.