A sex ratio is the ratio of males to females in a population. As explained by Fisher's principle, for evolutionary reasons this is typically about 1:1...
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human sex ratio is the ratio of males to females in a population in the context of anthropology and demography. In humans, the natural sex ratio at birth...
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The human sex ratio is the comparative number of males with respect to each female in a population. This is a list of The table's data is from The World...
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Sex ratio is used to describe the ratio of females to males in a population. In India, the sex ratio has been estimated via a number of methods and data...
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The child sex ratio in India is defined as the number of females per thousand males in the age group 0–6 years in a human population. Thus it is equal...
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Internet Archive. Hamilton WD (April 1967). "Extraordinary sex ratios. A sex-ratio theory for sex linkage and inbreeding has new implications in cytogenetics...
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the census data in China has recorded a significant imbalance in the sex ratio toward the male population, meaning there are fewer women than men. This...
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around the same time or slightly later in India. Sex-selective abortion affects the human sex ratio—the relative number of males to females in a given...
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Fisher developed an explanation, known as Fisher's principle, of why sex ratios in many animals are 1:1. If there were 10 times more females in a population...
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the evolutionary biology of sexual reproduction, operational sex ratio (OSR) is the ratio of sexually competing males that are ready to mate to sexually...
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Female foeticide in India (redirect from Sex selection in India)
overall decline in preference for sons in the time period. The natural sex ratio is assumed to be between 103 and 107 males per 100 females, and any number...
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attitudes towards son preference have changed, normalizing the sex ratio and lowering the number of sex-selective abortions. Additionally, during the entire 20th...
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Demographics of Uttar Pradesh (section By sex ratio)
being the poorest districts in terms of sex-ratio, depicting a negative-correlation among literacy and sex-ratio in this case. The districts of Srawasti...
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(mathematics) Scale (map) Scale (ratio) Sex ratio Superparticular ratio Slope New International Encyclopedia "Ratios". www.mathsisfun.com. Retrieved 2020-08-22...
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Fisher's principle (redirect from Fisher's sex-ratio theory)
Fisher's principle is an evolutionary model that explains why the sex ratio of most species that produce offspring through sexual reproduction is approximately...
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The digit ratio is the ratio taken of the lengths of different digits or fingers on a hand. The most commonly studied digit ratio is that of the 2nd (index...
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affects the sex ratio of the sperm that reach the egg. Sex-specific mortality of embryos also occurs. Aristotle believed incorrectly that the sex of an infant...
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average for the sex ratio shows an increase from 933 in 2001 to 940 in 2011, the 2011 census shows a sharp decline in the child sex ratio, the number of...
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at a higher rate than boys of the same age. This resulted in an adult sex ratio of 136 males for every 100 females. Cowgill theorised that this was partly...
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Chhattisgarh (section Sex ratio)
population. The sex ratio in the state is one of the most balanced in India with 991 females per 1,000 males, as is the child sex ratio with 964 females...
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diversity of the nation of India. The sex ratio was 944 females for 1000 males in 2016, and 940 per 1000 in 2011. This ratio has been showing an upwards trend...
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Behavior mutation (section Sex-ratio behaviour)
female offspring in response to environmental conditions. Sex ratio behaviour is the sex ratio response of a female in various conditions. Mutation accumulation...
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Population Fund, the reasons behind sex selection are due to three factors and provide an understanding for sex ratio imbalances as well as to project future...
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In vitro fertilisation (section Sex ratio distortions)
male sex ratio; however, adding retinoic acid to the culture can bring this ratio back to normal. A second theory is that the male-biased sex ratio may...
182 KB (21,188 words) - 07:01, 22 November 2024
Telephone-pole beetle (section Larval sex ratio)
paedogenetic larvae, the sex ratio is strongly biased toward females. None of the three canonical explanations for biased sex ratios, local mate competition...
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others of whom were adopted abroad. Over time, this skewed the country's sex ratio toward men and created a generation of "missing women". However, the policy...
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Sri Bhaini Sahib (section Child Sex Ratio)
population of village. Average Sex Ratio is 903 per 1000 males which is higher than the state average of 895. The child Sex Ratio as per census is 681, lower...
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Demographics of the world (section Sex ratio)
Northern Mariana Islands have the highest female ratio with 0.77 males per female. Qatar has the highest male ratio, with 2.87 males/female. For the group aged...
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threshold during the temperature sensitive period, the sex ratio is varied between the two sexes. Some species' temperature standards are based on when...
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