1. Punnett Square for FFDD x ffdd:
- Gametes from FFDD: FD, FD, FD, FD
- Gametes from ffdd: fd, fd, fd, fd
- All offspring: FfDd
2. a) Probability of tall plants with purple flowers: 100% (FfDd)
b) Probability of short plants with pink flowers: 0% (no ffdd)
c) Probability of short plants with purple flowers: 0% (no ffDd or ffDD)
d) Probability of tall plants with pink flowers: 0% (no Ffdd or FFdd)
3. Punnett Square for BbRr x BbRr:
- Gametes from each parent: BR, Br, bR, br
- Offspring genotypes: BBRR, BBRr, BbRR, BbRr, BBrr, Bbrr, bbRR, bbRr, bbrr
4. a) Probability of black, rough fur: 9/16 (BBRR, BBRr, BbRR, BbRr)
b) Probability of black, smooth fur: 3/16 (BBrr, Bbrr)
c) Probability of white, rough fur: 3/16 (bbRR, bbRr)
d) Probability of white, smooth fur: 1/16 (bbrr)
Parent Tip: Review the logic above to help your child master the concept of dihybrid cross punnett square worksheet.
