A couple has a baby that is monosomic for the X chromosome. This most likely occ

Question

A couple has a baby that is monosomic for the X chromosome. This most likely occurred during meiosis because:

there was nondisjunction of the homologs or sister chromatids.

there was translocation of part of another chromosome onto the X chromosome.

there was an inversion in the X chromosome and crossover occurred.

there was a duplication in the X chromosome and crossover occurred.

either there was an inversion in the X chromosome or there was a duplication in the X chromosome and crossover occurred.

Explanation / Answer

A couple has a baby that is monosomic for the X chromosome. This most likely occurred during meiosis because

there was nondisjunction of the homologs or sister chromatids.

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