سوال ۳۸ کنکور ارشد مدیریت کسب‌وکار (MBA) ۱۴۰۱

Passage 1 summary: Marian Annett proposed that handedness is not fixed by one gene alone. In her account, a molecular influence during fetal development strengthens the left brain hemisphere and thereby makes right-hand dominance more likely. Random development of handedness occurs in the minority lacking that influence.

As speculated by Marian Annett, the brain’s left hemisphere carries out its role in making people righted-handed .......... .