第二性征比例的激素和行为决定因素。

Hormonal and behavioral determinants of the secondary sex ratio.

作者信息

Martin J F

机构信息

Department of Anthropology, Arizona State University, Tempe 85287-2402, USA.

出版信息

Soc Biol. 1995 Fall-Winter;42(3-4):226-38. doi: 10.1080/19485565.1995.9988903.

DOI:10.1080/19485565.1995.9988903

PMID:8738548

Abstract

The timing of insemination relative to ovulation and the frequency of insemination appear prominently in analyses of variations in human secondary sex ratios. Explanations invoking these variables are shown to be inadequate. A new synthetic model of sex determination is proposed in which the sex of offspring is powerfully determined by the state of the cervical mucus. The cervical state is then shown to be a function of hormonal factors endogenous to the female in interaction with the effects of previous inseminations.

摘要

在对人类第二性比率变化的分析中，授精相对于排卵的时间以及授精频率显得尤为突出。结果表明，基于这些变量的解释并不充分。本文提出了一种新的性别决定综合模型，其中后代的性别由宫颈黏液的状态有力地决定。随后表明，宫颈状态是女性体内内源性激素因素与先前授精影响相互作用的函数。