Faithin Omaha eBook Collection

Download or read book Studies in Spermatogenesis (Vol.1&2) written by N. M. Stevens and published by e-artnow. This book was released on 2020-07-15 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies in Spermatogenesis is a two part monograph written by American geneticist Nettie Maria Stevens which highlighted her increasingly promising focus of sex-determination studies and chromosomal inheritance. She observed that male mealworms produced two kinds of sperm, one with a large chromosome and one with a small chromosome. When the sperm with the large chromosome fertilized eggs, they produced female offspring, and when the sperm with the small chromosome fertilized eggs, they produced male offspring. The pair of sex chromosomes that she studied later became known as the X and Y chromosomes._x000D_ _x000D_ _x000D_