Question

Complete the Punnett squares below about Mendel's Peas. Underlined letters indicate a recessive trait for P, S, and W alleles. P - Purple Flower T — Tall plant G - Green pod t - Short plant S - Yellow seed W - Round seed T — Tall plant § - Green seed w - wrinkled seed t - Short plant Yellow seed - _% Round seed -_ % Tall plant -_ % Green seed - _% Wrinkled seed -_ % Short plant-_ % P - Purple Flower S - Yellow seed G - Green pod p - White flower § - Green seed Yellow pod Homozygous Dom -_ % Homozygous Dom -_ % Homozygous Dom -_ % Heterozygous-_ % Heterozygous- _% Heterozygous- _% Homozygous Rec -_ % Homozygous Rec -_ % Homozygous Rec -

Answer 1

To complete the Punnett squares for Mendel's Peas, we first need to establish the genotypes of the parents. I'll provide Punnett square analyses for each provided trait combination.

### Traits:
1. **P - Purple flower (dominant) / p - White flower (recessive)**
2. **T - Tall plant (dominant) / t - Short plant (recessive)**
3. **S - Yellow seed (dominant) / s - Green seed (recessive)**
4. **W - Round seed (dominant) / w - Wrinkled seed (recessive)**

Let's analyze two crosses based on your information:

### Cross 1: Flower Color, Plant Height, Seed Color, Seed Shape
Assuming we are crossing two heterozygous parents for each trait:
- Genotypes of parents: PpTtSsWw × PpTtSsWw

#### Punnett Square Results:
Each trait can be analyzed separately:
1. **Flower Color (Pp x Pp)**:
- Possible genotypes: PP, Pp, pp
- Percentages:
- Purple (PP + Pp) - 75%
- White (pp) - 25%

2. **Plant Height (Tt x Tt)**:
- Possible genotypes: TT, Tt, tt
- Percentages:
- Tall (TT + Tt) - 75%
- Short (tt) - 25%

3. **Seed Color (Ss x Ss)**:
- Possible genotypes: SS, Ss, ss
- Percentages:
- Yellow (SS + Ss) - 75%
- Green (ss) - 25%

4. **Seed Shape (Ww x Ww)**:
- Possible genotypes: WW, Ww, ww
- Percentages:
- Round (WW + Ww) - 75%
- Wrinkled (ww) - 25%

### Summary for Cross 1:
- Yellow seed - **75%**
- Round seed - **75%**
- Tall plant - **75%**
- Green seed - **25%**
- Wrinkled seed - **25%**
- Short plant - **25%**

### Cross 2: Flower Color, Seed Color, Pod Color
Assuming we are crossing a homozygous dominant with a homozygous recessive:
- Genotypes: PPGg × ppgg (Purple with Yellow pods and White with Green pods)

#### Punnett Square Results:
1. **Flower Color** (PP x pp):
- Possible genotypes: Pp
- Percentages:
- Purple - 100%
- White - 0%

2. **Seed Color** (Ssgg x ssgg):
- Possible genotypes: Ss, ss
- Percentages:
- Yellow - 50%
- Green - 50%

### Summary for Cross 2:
- Homozygous Dom - **100% (Purple flower)**
- Heterozygous - **0%**
- Homozygous Rec - **0%**

### Final Arrangement
Here’s the completed data assuming the above crosses:

1. **First Cross:**
- Yellow seed - **75%**
- Round seed - **75%**
- Tall plant - **75%**
- Green seed - **25%**
- Wrinkled seed - **25%**
- Short plant - **25%**

2. **Second Cross:**
- Homozygous Dom for Purple Flower - **100%**
- Homozygous Rec for White Flower - **0%**
- Heterozygous for Purple Flower - **0%**
- Homozygous Dom for Yellow Seed - **50%**
- Homozygous Dom for Green Pod - **50%**

This format should provide you with a clear summary of the crosses. Feel free to adjust any results based on specific parental genotypes if different assumptions are required!