A blue-flowered African violet of unknown ancestry self-pollinated and produced 50 seeds. These seeds germinate and grow into flowering plants. Of these plants, 36 produce blue flowers and 14 produce pink flowers. What is the best explanation for the pink-flowered offspring?

In genetics, recessive traits usually find expression in the second filial generation. At this stage there is a higher possibility of having a homozygous recessive gene which will find expression.

In the first generation, it is obvious that the blue-flower coloration has a dominance over the pink-flower coloration. However, on crossing of the first generation, it results in 14 homozygous plants for pink-flower coloration.

priyankatutor priyankatutor · Answer 2 · 2021-11-29T12:51:15+01:00

The the best explanation for the pink-flowered offspring is the recessive pink flower coloration.

In the first generation:

All flowers were blue because the blue-flower is dominant over the pink-flower.

Crossing of the first generation:

It results in 14 pure breed plants with pink-flower because when heterozygous parents cross, they give some recessive offspring.

Therefore, the the best explanation for the pink-flowered offspring is the recessive pink flower coloration.

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