Genetics Review Day Part 1

Front

What is an allele?

Back

An allele is a variant form of a gene that determines a specific trait in an organism.

Front

What does it mean for an allele to be dominant?

Back

A dominant allele is one that always shows up in an organism's phenotype when it is present.

Front

What does it mean for an allele to be recessive?

Back

A recessive allele is one that only shows up in an organism's phenotype when two copies are present.

Front

What is a Punnett square used for?

Back

A Punnett square is used to predict the possible genetic outcomes of a cross between two organisms.

Front

What is the genotype of a black guinea pig that is homozygous?

Back

The genotype of a black guinea pig that is homozygous is BB.

Front

What is the genotype of a white guinea pig that is homozygous?

Back

The genotype of a white guinea pig that is homozygous is bb.

Front

If a black guinea pig (BB) and a white guinea pig (bb) mate, what is the chance of getting a black guinea pig?

Back

There is a 100% chance of getting a black guinea pig.

Front

What is the phenotype of a guinea pig with the genotype Tt?

Back

The phenotype of a guinea pig with the genotype Tt is tall.

Front

What is the dominant trait for pea seeds?

Back

The dominant trait for pea seeds is yellow pea seeds.

Front

What is the recessive trait for pea seeds?

Back

The recessive trait for pea seeds is green pea seeds.