Species 1 is described as 2n = 8 and has chromosome composition BBDDEEHH. Specie

Question

Species 1 is described as 2n = 8 and has chromosome composition BBDDEEHH. Species 2 is described as 2n = 10 and has chromosome composition NNPPSSXXZZ. Select the best answer to classify the organism below based on its chromosome composition. Note that each letter represents a chromosome and that the organism below is either an individual from one of the species above or is derived from one or both species above.

Organism: BBDDEEHHNPSXZ

Select one:

a. Haploid

b. Double Trisomic

c. Autotetraploid

d. Double Monosomic

e. Monosomic

f. Nullisomic

g. Diploid

h. Allotetraploid

i. Allotriploid

j. Trisomic

k. Autotriploid

Explanation / Answer

As, it is aneuploid, condition, it belong to monosomic condition, where it is represented by 2N-1 , where it is diploid along with decrease of none set of chromosome. It result from non-disjunction of the chromosome. Hence, option e is correct.

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