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《The Descent of Man, and Selection in Relation to Sex》Chapter III Comparision of the Mental Powers of Man and the Lower Animals
The Descent of Man, and Selection in Relation to Sex 人类由来与性选择 查尔斯·达尔文 Charles Darwin
2008/12/22
WE HAVE seen in the last two chapters that man bears in his bodily structure clear traces of his descent from some lower form; but it may be urged that, as man differs so greatly in his mental power f...
《The Descent of Man, and Selection in Relation to Sex》Chapter I The Evidence of the Descent of Man from Some Lower Form
The Descent of Man, and Selection in Relation to Sex 人类由来与性选择 查尔斯·达尔文 Charles Darwin
2008/12/22
HE WHO wishes to decide whether man is the modified descendant of some pre-existing form, would probably first enquire whether man varies, however slightly, in bodily structure and in mental faculties...
Sex-related differential mortality of a marine copepod exposed to a toxic dinoflagellate
Sex-related differential mortality marine copepod exposed toxic dinoflagellate
2014/4/21
In this study we hypothesized that the sexes of the copepod Acartia hudsonica experience different mortalities when exposed to the toxic dinoflagellate Alexandrium fundyense. In laboratory experiments...
Sex-related differential mortality of a marine copepod exposed to a toxicdinoflagellate
Sex-related differential mortality marine copepod exposed toxicdin of lagellate
2014/4/18
In this study we hypothesized that the sexes of the copepod Acartia hudsonicaexperience different mortalities when exposed to the toxic dinoflagellate Alexandrium fundyense. In laboratory experiments,...
毛冠鹿ZFY、ZFX基因片段的克隆与性别鉴定Cloning of ZFY /ZFX Gene of the Tufted Deer and identification of its sex
毛冠鹿(Elaphodus cephalophus) ZFY ZFX 性别鉴定
2008/1/8
摘要
根据人和鼠性别分化相关的ZFY、ZFX基因序列设计引物，以雌雄毛冠鹿的基因组DNA为模板进行PCR扩增，将扩增产物克隆到pMD18T上，获得ZFY、ZFX重组克隆，并测定了ZFY、ZFX基因片段的序列，序列比较显示两者同源性达 91%，仅在少数位点有差异，以此确定AvaⅡ为ZFX上特异酶切位点，通过PCR扩增和AvaⅡ特异酶切对毛冠鹿性别进行鉴定。
Abstract: According...
鸟类的性别决定是一个多基因参与的级联调控过程。这一过程受Z染色体连锁的DMRT1基因, W染色体连锁的PKC1W和其它多种因子共同调控。本文综述了性别决定基因及其功能、性别鉴定方法等方面的研究进展。
Avian sex determination is a multiple gene regulation cascade. Genes such as the Z chromosome-link...
Transformer基因与果蝇和线虫的性别决定Transformer Genes and Sex Determination of C. elegans and D.melanogaster
线虫 果蝇 性别决定 C.elegans D.melanogaster sex determination
2007/12/5
黑腹果蝇(Drosophila melanogaster)和秀丽隐杆线虫（Caeborhabditis elegans）的性别决定的问题已研究得比较详细，且transformer基因是这两种生物性别决定中最重要的基因之一，其有关的性别决定研究在近几年取得了很大的进展。本文就线虫和果蝇的transformer基因及其相关基因的特性与功能进行了特别介绍，并在此基础上对其性别决定的分子机制进行初步的比较...
Seasonal Variation in Length, Weight, and Sex Distribution of Turbot (Scophthalmus maeoticus Pallas, 1811) in the Sinop Region (Black Sea) of Turkey
Turbot Scophthalmus maeoticus length weight sex ratio seasonal variation
2010/3/26
The length, weight and sex distribution of turbot caught by bottom turbot gill nets were investigated in relation with seasons in the Sinop region. The size ranges were 23.9-69 cm and 31.8-81 cm for m...
期刊信息
篇名
Genetic Determination and Exogenous influence in sex differentiation in crustacean
语种
英文
撰写或编译
作者
Wu Changgong, Xiang Jianhai,
第一作者单位
刊物名称
Developmental & Reproductive B
页面
2002,11(2):137-144
...
Could carrots be the secret to a long-life and sex appeal?
carrots immune system Evolutionary Biology
2007/5/18
09 May 2007，Researchers at the Universities of Glasgow and Exeter have found that eating certain plant substances can slow down the rate of ageing - and that females prefer mates that will be long-liv...
Effects of Dehairing Methods and Sex on Pork Quality and Boar Taint Compound Levels in Tissues
Dehairing Methods Sex Pork Quality Boar Taint Androstenone Skatole
2016/4/26
The objective of this study was to investigate the effects of dehairing methods and sex on various traits of pork quality, as well as on tissue levels of the boar taint compounds androstenone and skat...
Gonad Development and Sex Ratio of Sharptooth Catfish (Clarias gariepinus Burchell, 1822) Cultured under Laboratory Conditions
Clarias gariepinus histology gametogenesis morphology sex ratio
2010/3/26
In the present work, gonad development and sex ratio of sharptooth catfish (Clarias gariepinus) cultured under laboratory conditions over 365 days from hatching were investigated histologically and mo...
Age, Growth, and Sex Ratio of Golden Grey Mullet, Liza aurata (Risso, 1810) in Homa Lagoon (İzmir Bay, Aegean Sea)
Grey mullet (Liza aurata) Homa Lagoon age growth sex ratio
2010/3/26
In this study, age, growth, and sex ratio of 342 golden grey mullets, which were caught in fish traps during fishing season were determined. The samples were between 7.5 and 39.5 cm in length and were...
atural growth rates in Antarctic krill (Euphausia superba): II. Predictive models based on food, temperature, body length, sex, and maturity stage
sex maturity stage
2014/5/4
We used the instantaneous growth rate method to determine the effects of food, temperature, krill length, sex, and maturity stage on in situ summer growth of krill across the southwest Atlantic sector...
Investigation of Fecundity and Sex Ratio in the Parasitoid Bracon hebetor Say (Hymenoptera: Braconidae) in Relation to Parasitoid Age
Host parasitoid fecundity sex ratio Galleria mellonella Ephestia kuehniella
2010/3/29
The effect of parasitoid age on fecundity and sex ratio in Bracon hebetor Say (Hymenoptera: Braconidae) was examined at 26 ± 2 ºC and 60 ± 5% relative humidity. Galleria mellonella (L.) and Ephes...