# Oats are allohexaploid with 2N=6X=42

Please answer in detail.

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?

© BrainMass Inc. brainmass.com October 9, 2019, 8:22 pm ad1c9bdddfhttps://brainmass.com/biology/dna-chromosomes-and-genomes/oats-allohexaploid-148837

#### Solution Preview

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. ...

#### Solution Summary

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