1.
AA - Homozygous
Bb - Heterozygous
Cc - Heterozygous
Dd - Heterozygous
Ee - Heterozygous
FF - Homozygous
Gg - Heterozygous
HH - Homozygous
Ii - Heterozygous
Jj - Heterozygous
Kk - Heterozygous
LL - Homozygous
2.
Purple flowers are dominant to white → PP, Pp
Round seeds are dominant to wrinkled → RR, Rr
Brown eyes are dominant to blue → BB, Bb
Bobtails are recessive (no long tails) → tt
3.
Straight hair is dominant to curly → straight: SS, Ss; curly: ss
Tall spikes are dominant to plain tails → spikes: TT, Tt; plain: tt
4.
Rr x rr
| | r | r |
|---|---|---|
| R | Rr | Rr |
| r | rr | rr |
What percentage of the offspring will be round? 50%
Rr x Rr
| | R | r |
|---|---|---|
| R | RR | Rr |
| r | Rr | rr |
What percentage of the offspring will be round? 75%
RR x Rr
| | R | r |
|---|---|---|
| R | RR | Rr |
| R | RR | Rr |
What percentage of the offspring will be round? 100%
Parent Tip: Review the logic above to help your child master the concept of biology genetics worksheet.
