The Sex Ratio
The Sex-Ratio Trait in Drosophila simulans: Genetic Analysis of Distortion and Suppression
... The sex-ratio trait described in several Drosophila species is a type of naturally occurring X-linked meiotic drive that causes males bearing a sex-ratio X chromoso[r] ...
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GENETIC INFLUENCES UPON THE SEX RATIO IN THE RABBIT
... Still further evidence of this influence of hybrid females is to be found in table 8 which shows the sex ratio of a special hybrid mating, that involving F l V X X fe[r] ...
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TOWARDS A GENETIC THEORY FOR THE EVOLUTION OF THE SEX RATIO
... For the purpose of examining the significance to sex-ratio evolution of the concept of reproductive investment and the sex-ratio strategy arguments, we have formulated a ge[r] ...
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Studies on the Sex Ratio and Related Phenomena
... The sex-ratio at the height of the breeding season is thus significantly lower than later, and this result is quite in keeping with the experimental and statistical work which has been c[r] ...
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ALCOHOL AND THE SEX RATIO
... The data of PEARL and HANSON, and the reanalyzed data of STOCKARD, taken together, indicate strongly that severe and prolonged administration of alcohol fumes does not ha[r] ...
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Studies on the Sex Ratio and Related Phenomena
... Such variation was also found to occur in the data for 1921-2 all litters but in this latter case the biggest average size of litter was found in the July-September quarter and the lowes[r] ...
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GENETIC VARIATION FOR THE SEX RATIO IN NASONIA VITRIPENNIS
... S2 females crossed with HE males produced an average sex ratio that is not significantly different from that of the pure selection line.. In contrast, sex ratios prod[r] ...
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INTERSPECIFIC TRANSFER OF THE "SEX-RATIO" CONDITION IN DROSOPHILA
... equinoxialis to a normal strain of the same species; (b) from “sex-ratio” females of D. Also, it was observed that the incubation period for the same agent is different in di[r] ...
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The Effect of Polygyny on the Sex Ratio of Mice (Mus Musculus)
... Two series of polygynous matings in mice produced a total of 3430 young, fc females and 1627 males, giving a sex ratio of 90-23 : ioo which does not er significantly from that of the ave[r] ...
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THE THEORETICAL GENETICS OF THE SEX RATIO
... discussion is difficult to paraphrase and should be consulted in the original. He is mainly concerned in showing that with parental care and a difference in viability between the sexe[r] ...
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Sex Ratio: Trends and Patterns at World Level
... India sex ratio was relatively high when total fertility rates were ...of sex of the child and in case it is reported girl, get it ...the sex of the second ...The sex ratio at ...
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The Scenario of Female Literacy & Sex Ratio in Haryana
... The analysis of the above data indicates that according to the census of 2001 total population of Haryana were 21144564, in which total females were 9780611 and the sex ratio of the state was 861. Now ...
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Glimpses at the History of Sex Ratio Studies
... Abstract: The sex ratio at birth (SR) is defined as the number of males per 100 females and is almost always around 106. John Graunt (1620–1674) was the first to compile data showing an excess of male ...
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Effects of mefloquine and artesunate mefloquine on the emergence, clearance and sex ratio of Plasmodium falciparum gametocytes in malarious children
... to sex several days before treatment began, the female- biased sex ratio observed with artesunate-mefloquine would suggest that the drug has no effect on sex allocation strategy of the ...
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Doke
... Generally sex ratio at birth favors females in adverse socio-environmental ...The sex ratio at birth is also affected by the different IVF laboratory techniques but overall it favors ...in ...
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AN ABNORMAL SEX RATIO IN DROSOPHILA SIMULANS
... The temperature-sensitive stage, however, is apparently the primary spermatocyte rather than the spermatid, suggesting a primary action of the sex ratio gene before meiosis and a n[r] ...
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Sex-Ratio Meiotic Drive and Y-Linked Resistance in Drosophila affinis
... variation. Sex-ratio meiotic drive is also common within the group and it is therefore tempting to suggest that a link exists between the ...the sex ratio completely such that only sons are ...
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The Decline of Child Sex Ratio in Haryana: An Overview
... with better education for women. Although to increase the status of women, patterns of nuptiality and fertility behavior, particularly between the southern and northern states of India. A large proportion of daughter ...
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Plasmodium falciparum gametocyte sex ratios in children with acute, symptomatic, uncomplicated infections treated with amodiaquine
... biased sex ratio, and we have no explanation for our ...biased sex ratio following treatment with ...female-biased sex ratio [7], it would now be important to evaluate the ...
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SEX COMPOSITION OBSERVATION OF LABEO DYOCHEILUS (MCCLELLAND)FROM WESTERN RAMGANGA RIVER, UTTARAKHAND, INDIA.
... the sex ratio of African Carp, Labeocoubie, Cross River, ...Nigeria.The sex ratio of the fish showed highly significant monthly variations from the expected male: female ...overall sex ...
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