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When an albino female plnt of maize is c...

When an albino female plnt of maize is crossed with normal green male plant, all plants in the progeny are albino because

A

trait for albinism is dominant

B

the albinos have blochemical to destroy plastids derived from green male

C

plastids are inherited from female parent

D

green plastids of male must have mutated

Text Solution

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The correct Answer is:
To solve the question about why all progeny from a cross between an albino female maize plant and a normal green male plant are albino, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Identify the Parent Plants**: - The female plant is albino (colorless). - The male plant is normal green. 2. **Understand the Concept of Plastids**: - Plastids are organelles in plant cells that are responsible for photosynthesis and color. Green plastids (chloroplasts) are necessary for the green color in plants. 3. **Determine the Inheritance Pattern**: - In this case, the color of the plastids is inherited through the cytoplasm, which is passed from the female parent to the offspring. This is known as maternal or cytoplasmic inheritance. 4. **Analyze the Genetic Contribution**: - Since plastids are inherited maternally, the progeny will receive plastids only from the albino female plant. - The male plant contributes nuclear DNA but does not contribute plastids. 5. **Conclude the Progeny Color**: - Because the albino female plant has colorless plastids, all progeny will inherit these colorless plastids from their mother. - Therefore, all progeny will be albino. 6. **Final Conclusion**: - The reason all plants in the progeny are albino is due to maternal inheritance of plastids, which are colorless in the albino female plant.

To solve the question about why all progeny from a cross between an albino female maize plant and a normal green male plant are albino, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Identify the Parent Plants**: - The female plant is albino (colorless). - The male plant is normal green. ...
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