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Oats are allohexaploid with 2N=6X=42

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3. Oats are allohexaploid with 2N=6X=42. How many chromosomes does one of its diploid relatives, Avena barbata, have?

4. Arabidopsis thaliana has 5 pairs of chromosomes, so 2n=2x=10. Answer the following questions about this plant.

a. How many chromosomes would an autotetraploid Arabidopsis plant have?

b. How many chromosomes would a monosomic Arabidopsis plant have?

c. How many chromosomes would a trisomic Arabidopsis plant have?

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The expert examines Oats are allohexaploid with 2N=6X=42. How many chromosomes a diploid relatives have are determined.

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3. Oats are allohexaploid with 2N=6X=42. How many chromosomes does one of its diploid relatives, Avena barbata, have?

An allohexaploid organism essentially has three diploid sets of chromosomes. So, it really has 6 copies of a given chromosome, yet it functions as a complete diploid. Hence, 2N=6X. Make sense? Therefore, a diploid relative would be 2N=16. ...

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