4. What would happen if Spongebob crossed a Poofkin with a purple flower with a Poofkin with blue flowers? Complete the Punnett square to show the probability for plants with each flower color. a. Give the genotype and phenotype of the offspring. b. If Spongebob planted 100 seeds from this cross. How many should he expect for each color of the flower? Purple flower. Blue flower: Red flower:
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Answer:
To determine the probability of flower colors, and the expected number of each color in a hypothetical cross between a Poofkin with a purple flower and a Poofkin with blue flowers, we need to consider the possible genotypes and phenotypes of the offspring.
Assuming that purple flower color (P) is dominant over blue flower color (p), and red flower color (R) is dominant over both purple and blue, we can represent the genotypes of the parents as:
Poofkin with purple flower: PP
Poofkin with blue flower: pp
To determine the possible genotypes and phenotypes of the offspring, we can construct a Punnett square:
```
P P
------------
p | Pp Pp
p | Pp Pp
```
The Punnett square shows that all the offspring will have the genotype Pp, which indicates that they will all have purple flowers phenotypically.
a. Genotype and phenotype of the offspring:
- Genotype: Pp
- Phenotype: Purple flower
b. To estimate the expected number of each color flower when planting 100 seeds, we can assume that the genotype (Pp) will result in a purple flower phenotype.
Therefore, if Spongebob planted 100 seeds, we can expect that all 100 of them will have a purple flower color.
Expected number for each color of the flower:
- Purple flower: 100
- Blue flower: 0
- Red flower: 0