For a single gene, how many alleles does each parent pass on to each offspring?
Which of the following individuals are carriers? (Choose ALL that apply)

How many grandchildren did I-1 and I-2 have?

How is III-2 related to III-4?

How many alleles does a person carry for each trait?
This pedigree tracks hemophelia in a family. How many of II-2's grandsons have hemophelia?

What are clues that a trait is recessive? (Choose ALL that apply)
The pedigree below tracks the appearance of a recessive trait:

Match each individual on the left with the correct genotype on the right.
Dad
Mom
Sister
Brother 1
Brother 2
Definitely homozygous dominant
Definitely heterozygous
Definitely homozygous recessive
Could be homozygous dominant or heterozygous