Escucha y lee

Descubre un mundo infinito de historias

  • Lee y escucha todo lo que quieras
  • Más de 500 000 títulos
  • Títulos exclusivos + Storytel Originals
  • 14 días de prueba gratis, luego $24,900 COP/al mes
  • Cancela cuando quieras
Descarga la app
CO -Device Banner Block 894x1036
Cover for Studies in Spermatogenesis (Vol.1&2): Complete Edition

Studies in Spermatogenesis (Vol.1&2): Complete Edition

Idioma
Inglés
Formato
Categoría

No ficción

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.

© 2020 e-artnow (Ebook): 4064066399054

Fecha de lanzamiento

Ebook: 15 de julio de 2020

Etiquetas