Heredity and Punnett Squares Flashcard 2

Front

What does the genotype 'tt' represent?

Back

Homozygous recessive

Front

In a Punnett square, if 'T' represents tall and 't' represents short, what genotype is represented by 'tt'?

Back

tt

Front

What is the genotype of an individual who is heterozygous for a trait?

Back

Bb (where B is dominant and b is recessive)

Front

Which genotype is homozygous recessive?

Back

rr

Front

What is the phenotype for an individual with the genotype 'Bb'?

Back

Brown Hair

Front

Define homozygous dominant.

Back

An organism with two identical dominant alleles for a trait (e.g., 'BB').

Front

Define heterozygous.

Back

An organism with two different alleles for a trait (e.g., 'Bb').

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from parental crosses.

Front

If 'B' is the dominant allele for brown hair, what is the phenotype for 'bb'?

Back

Blonde Hair

Front

What does it mean if an organism is homozygous?

Back

It has two identical alleles for a specific trait.