Question

more pedigree practice
instructions: answer the questions that accompany each pedigree based on the information provided.

instructions: identify each of the following genotypes as...

• heterozygous
• homozygous dominant
• homozygous recessive

1. gg : answer
2. hh : answer
3. aa : answer
4. aa : answer
5. bb : answer
6. cc : answer
7. tt : answer
8. rr : answer

Explanation:

1. Gg

A heterozygous genotype has two different alleles (one dominant, one recessive). In \( Gg \), \( G \) and \( g \) are different alleles, so it's heterozygous.

A homozygous dominant genotype has two identical dominant alleles. In \( HH \), both alleles are \( H \) (dominant), so it's homozygous dominant.

A heterozygous genotype has two different alleles. In \( Aa \), \( A \) and \( a \) are different, so it's heterozygous.

Answer:

Heterozygous

2. HH