Punnett Squares and Pedigrees

Front

What is the recessive human blood allele?

Back

O

Front

What is the genotype of females that can be carriers of an X-linked trait?

Back

XX

Front

What notation represents alleles for a homozygous recessive genotype?

Back

aa

Front

What type of dominance is represented by pink flowers from a purebred red flower crossed with a purebred white flower?

Back

incomplete dominance

Front

Why does a recessive trait skip a generation in a pedigree?

Back

Because individuals can be carriers without expressing the trait.

Front

What is the most likely genotype for a person in a pedigree who is recessive and skips a generation?

Back

gg

Front

Define a Punnett square.

Back

A diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Front

What is the purpose of a pedigree chart?

Back

To trace the inheritance of traits through generations in a family.

Front

What does it mean for a trait to be X-linked?

Back

The trait is associated with a gene located on the X chromosome.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous has identical alleles (e.g., AA or aa), while heterozygous has different alleles (e.g., Aa).