Why did the xyy chromosome theory fall out of favor as an explanation for criminal behavior?

XYY disorder is a hereditary condition in which a human male has an additional male (Y) chromosome, giving an aggregate of 47 chromosomes rather than the more regular 46. The "XYY" chromosome hypothesis drop out of support as a clarification for criminal conduct is on account of thought most lawbreakers don't have XYY and everybody with XYY is not a criminal

The correct answer is It produces gametes that are needed for sexual reproduction.

Explanation-

Meiosis is a type of cell division, which is a characteristic feature of sexually reproducing organisms. It produces reproductive cells called gametes, which possess half number of chromosomes as compared to their parental cells ( which are diploid). Gametes from each parent fuse to form a diploid zygote that develops into an individual.

Thus, it summarizes the importance of meiosis to reproduction.