Sex differences in recombination of linked genes in animals
نویسندگان
چکیده
منابع مشابه
Sex differences in recombination
One of the stronger empirical generalizations to emerge from the study of genetic systems is that achiasmate meiosis, which has evolved 25-30 times, is always restricted to the heterogametic sex in dioecious species. usually the male. Here we collate data on quantitative sex differences in chiasma frequency from 54 species (4 hermaphroditic flatworms, 18 dioecious insects and vertebrates and 32...
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Coincidence. . . . . . . . . . . . .............................. 54 Non-disjunction . . . . . . . . .............................. 55 Gynandromorphs. . . . . . . ............................... 55 Absence of gynandromorp s hybrids.. .................... 60 Somatic mutations, . . . . . ................................... 61 SUMVARY.. ................................................................
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A large number of morphological, physiological and behavioural traits are differentially expressed by males and females in all vertebrates including humans. These sex differences, sometimes, reflect the different hormonal environment of the adults, but they often remain present after subjects of both sexes are placed in the same endocrine conditions following gonadectomy associated or not with ...
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Background and objectives: Considering the high contribution of unintentional accidents to mortality, particularly in males in Iran, and their changes over the last decade, a study was conducted to review the share of deaths due to unintentional accidents in sex difference in life expectancy at birth in the country over the last decades. Methods: The mortality data for the years 2006 to 2015...
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In many organisms, recombination rates differ between the two sexes. Here we show that in mice, this is because of a shorter genomic interference distance in females than in males, measured in Mb. However, the interference distance is the same in terms of bivalent length. We propose a model in which the interference distance in the two sexes reflects the compaction of chromosomes at the pachyte...
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ژورنال
عنوان ژورنال: Genetical Research
سال: 1967
ISSN: 0016-6723,1469-5073
DOI: 10.1017/s0016672300010491