1.) If a male who is color-blind has children with a female who
is a carrier for color-blindness, what is the possible phenotypic
ratio of their offspring? Use numbers in each blank out of 4
possible offspring: ________ girls with color vision :
________girls without color vision : _________boys with color
vision : ________boys without color vision.

2.) If two dihybrid pea plants, PpSs and Ppss (P=purple flowers,
p=white; S=starchy seeds, s=sweet), what are the genotypic and
phenotypic ratios? Use numbers in each blank out of 8 possible
offspring in each blank. Genotypic ratio: [a] PPSs
: [b] PpSs : [c] ppSs :
[d] PPss : [e] Ppss :
[f] ppss; Phenotypic ratio: [g]
purple, starchy : [h] purple, sweet :
[i] white starchy : [j] white
sweet

3.) Sickle-cell anemia is autosomal recessive. Which of the
people in this pedigree are definitely carriers? Mark all correct
answers.