In a unique species of plants, flowers may be yellow, blue, red, ...

Question

In a unique species of plants, flowers may be yellow, blue, red, or mauve. All colors may be true breeding. If plants with blue flowers are crossed to red-flowered plants, all F₁ plants have yellow flowers. When these produced an F₂ generation, the following ratio was observed:

9/16 yellow: 3/16 blue: 3/16 red: 1/16 mauve

In still another cross using true-breeding parents, yellow-flowered plants are crossed with mauve-flowered plants. Again, all F₁ plants had yellow flowers and the F₂ showed a 9:3:3:1 ratio, as just shown.

Determine the F₁ and F₂ results of a cross between true-breeding red and true-breeding mauve-flowered plants.

Accepted Answer

Hello everyone here We have a question that says a hybrid plant with pink capital R. Lowercase R. Flour is produced by a plant with red Capital R. Capital R. And white lowercase R. Lowercase R. Flowers. What is the expected, you know, typical ratio when the hybrid plant with pink is crossed with the recessive parent with white flowers. So the hybrid plan is going to be capital R. Lowercase R. Which is told to us right here. And the recessive parent with white flowers is going to be lower case are lower case R. So let's set up our pendant square. We have capital R. Lowercase R. Lower case R. Lowercase R. So our first offspring will be capital R. Lowercase are our second offspring will be lower case R. Lowercase are making it white. Our third offspring will be capital R. Lowercase R. Which is a hybrid making it pink. And our fourth offspring will be lower case R. Lowercase R. So it is half. So it is a 1 to 1 ratio of pink to white flowers. So our answer is a Pink to white 121. Thank you for watching. Bye.

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