Three Mark Questions :
A plant with purple flowers was crossed with white flowers producing 50 plants with only purple flowers. On selfing these plants produced 482 plants with purple flowers and 162 plants with white flowers. What gametic mechanism accounts for these results? Explain.

Open in App

Solution

Law of dominance:- In this cross purple colour dominates over white colour flower so f1 generation is purple law of segregation. In f2 generation at the time of gamete formation gene segregate on different chromosome so both white and purple colour over are formed.

Suggest Corrections

Similar questions

Q. A plant with purple flowers was crossed with white flowers producing 50 plants with only purple flowers. Selfing these plants produced 482 plants with purple flowers and 162 plants with white flowers. What genetic mechanism accounts for these results? Explain. [3]

Q. Application based questions.
A pea plant with purple flowers was crossed with white flowers, producing 50 plants with only purple flowers. On selfing, these plants produced 482 plants with purple flowers and 162 with white flowers. What genetic mechanism accounts for these results? Explain.

In the pea plant, purple color of flower is dominant over white color. Progeny obtained by crossing pure purple flowered plants with white flowered plants are self-pollinated. The resulting plants produced are:

Q. A homozygous tall pea plant with purple flowers was crossed with a short plant with white flowers and

F 2

generation was raised. What will be the proportion of tall plants and short plants in

F 2

generation? Explain.

Q. Heterozygous purple-flowered plant was crossed with homozygous recessive white-flowered plant. The observed phenotype is

Join BYJU'S Learning Program

Three Mark Questions :A plant with purple flowers was crossed with white flowers producing 50 plants with only purple flowers. On selfing these plants produced 482 plants with purple flowers and 162 plants with white flowers. What gametic mechanism accounts for these results? Explain.

Law of dominance:- In this cross purple colour dominates over white colour flower so f1 generation is purple law of segregation. In f2 generation at the time of gamete formation gene segregate on different chromosome so both white and purple colour over are formed.

Three Mark Questions :
A plant with purple flowers was crossed with white flowers producing 50 plants with only purple flowers. On selfing these plants produced 482 plants with purple flowers and 162 plants with white flowers. What gametic mechanism accounts for these results? Explain.