Most historians agree with which theory explaining early human migration?

Humanity began in East Africa and spored to the rest of the world.

According to historians, ancestral foundation story for modern humans states that primitive groups migrated out of Africa 60,000 years ago. Maximum non-Africans can determine their origin to these migrations. However, the new evidence recommends that people actually immigrated out of Africa as far back as 120,000 years ago.

These primitive groups may have produced tools and brought culture with them, and they also interbred with other hominin varieties that survived at the time. This includes Denisovans and Neanderthals. Genetic traces of these primitive migrant groups can nevertheless be founded today.

the answer is "meiosis ii in the mother".

the procedure of meiosis includes two divisions of the hereditary material. the main division is known as the decrease division – or meiosis i – on the grounds that it lessens the quantity of chromosomes from 46 chromosomes or 2n to 23 chromosomes or (n depicts a solitary chromosome set). in people, the decrease division results in two sperm cells each with 23 chromosomes or an egg cell with 23 chromosomes and one disposed of polar body. the second division – or meiosis ii – is called equational division. the two sperm cells split again creating four sperm cells, each with 23 or n chromosomes. in oogenesis, the egg cell and polar body partition to shape the ovum and two extra polar bodies. along these lines, the posterity are guaranteed to get one portion of the chromosomes from the mother and one half from the dad.