父亲份额预测了儿子的胎儿丸激素

Ruth Fishman1,2, Lee Koren3, Rachel Ben-Shlomo4

  • 1Department of Brain Sciences, Weizmann Institute of Science, 76100, Rehovot, Israel. ruthevolu@gmail.com.

Scientific reports
|October 4, 2023
PubMed
概括

努特里亚雌性可能保持多重父权,以增加 litter 遗传多样性,这是一个投注对冲策略. 这种生殖策略可以提高后代的生存率,特别是在面临遗传瓶的入侵种群中.

相关概念视频

The Y Chromosome Determines Maleness02:19

The Y Chromosome Determines Maleness

The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size....
6.7K
Probability Laws01:49

Probability Laws

Overview
41.0K
Testosterone: Functions and Regulation01:26

Testosterone: Functions and Regulation

The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...
704
Punnett Squares01:00

Punnett Squares

Overview
114.7K
Spermatogenesis01:41

Spermatogenesis

Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
102.6K
Pedigree Analysis01:35

Pedigree Analysis

Overview
84.4K