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Yellow peas are a dominant trait over green peas for this punnett square. What will the ratio of yellow to green peas be?

(1 point)
Responses

2 yellow peas: 2 green peas
2 yellow peas: 2 green peas

4 green peas
4 green peas

4 yellow peas
4 yellow peas

3 yellow peas: 1 green pea

1 answer

In a typical Punnett square for a monohybrid cross between heterozygous yellow peas (Yy) and yellow peas (YY or Yy), the ratio of yellow to green peas can be determined.

If we assume the cross is between two heterozygous yellow peas (Yy x Yy), the possible genotypes from the Punnett square would be:

  • YY (yellow)
  • Yy (yellow)
  • Yy (yellow)
  • yy (green)

This results in a ratio of:

  • 3 yellow (YY and Yy) to 1 green (yy).

Therefore, the correct answer would be:

3 yellow peas: 1 green pea.