Question

10. A white flowered plant is crossed with a plant that is heterozygous for the trait.
What percentage of the offspring will have purple flowers?​

Answer 1

Answer:

0%

Explanation:

The homzyg. flowered gametes are: WW

The heterozygous plant gametes are : Ww

The 'w' allele is for purple and its recessive. The 'W' allele is for white and is dominant. The Punnett square:

      |  W   |  w   |

W  | WW | Ww |

W  | WW | Ww |

Half of them are heterozygous white and half are homzygous white. But there is no 'ww', so its 0%.

Answer 2

If a white-flowered plant is crossed with a plant that is heterozygous for the trait. The percentage of the offspring will have purple flowers is 75%.

What is a heterozygous individual?

A heterozygous individual is one who contains two different alleles for the traits.

The recessive allele is white p

The dominant allele is purple. P

When the crossing is done between them, 75% of the population will be purple, as shown in the diagram, and 25% of the population will be white.

Thus, the percentage of the offspring that will have purple flowers will be 75%.

Learn more about heterozygous individual

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