Answer :
Sure! Let's solve this genetics problem step-by-step.
1. Understand the Genotypes:
- We have a heterozygous male with the genotype Ww.
- We have a homozygous recessive female with the genotype ww.
2. Set up a Punnett Square:
- The male can produce gametes with either W or w.
- The female can produce gametes with w only.
3. Fill the Punnett Square:
| | W | w |
|--------|----|----|
| w | Ww | ww |
| w | Ww | ww |
- The Punnett square shows all the possible genotypes of the offspring.
- From the square:
- One offspring could be Ww (top row, left cell).
- Another could be ww (top row, right cell).
- Another could be Ww (bottom row, left cell).
- And another could be ww (bottom row, right cell).
4. Determine the Probability:
- There are 4 possible outcomes (as seen in the Punnett square).
- Count the heterozygous genotype (Ww) among the offspring:
- There are 2 Ww outcomes.
5. Calculate the Probability:
- To find the probability of having heterozygous offspring (Ww), divide the number of heterozygous outcomes by the total number of outcomes:
- Probability = Number of Ww outcomes / Total outcomes = 2 / 4 = 0.5
Hence, there is a 0.5 (or 50%) chance that the offspring will be heterozygous.
1. Understand the Genotypes:
- We have a heterozygous male with the genotype Ww.
- We have a homozygous recessive female with the genotype ww.
2. Set up a Punnett Square:
- The male can produce gametes with either W or w.
- The female can produce gametes with w only.
3. Fill the Punnett Square:
| | W | w |
|--------|----|----|
| w | Ww | ww |
| w | Ww | ww |
- The Punnett square shows all the possible genotypes of the offspring.
- From the square:
- One offspring could be Ww (top row, left cell).
- Another could be ww (top row, right cell).
- Another could be Ww (bottom row, left cell).
- And another could be ww (bottom row, right cell).
4. Determine the Probability:
- There are 4 possible outcomes (as seen in the Punnett square).
- Count the heterozygous genotype (Ww) among the offspring:
- There are 2 Ww outcomes.
5. Calculate the Probability:
- To find the probability of having heterozygous offspring (Ww), divide the number of heterozygous outcomes by the total number of outcomes:
- Probability = Number of Ww outcomes / Total outcomes = 2 / 4 = 0.5
Hence, there is a 0.5 (or 50%) chance that the offspring will be heterozygous.