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Sex research of thes

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The Kinsey Institute fields a multitude of questions about sexuality, gender, reproduction, and other topics. Consult the topics below for answers, statistics, and resources to our most frequently asked questions. This is not a repository for all answers and statistics related to human sexuality, gender, or reproduction. The following only addresses questions frequently asked of the Kinsey Institute and its researchers. There is wide variability in what people consider included in "having sex.
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Teenagers: sexual health and behaviour factsheet | FPA

What advantage did sex offer when it first appeared and why does sex persist in modern organisms, stopping them from becoming asexual again? One University of Houston professor thinks he may have uncovered some new clues in answering these questions. By studying one of the great mysteries of biology -- the evolution of sexual reproduction -- Ricardo Azevedo, an assistant professor in the department of biology and biochemistry at UH, has found in a study using a computational model that a leading theory may be more plausible than previously thought, His findings are described in a paper titled "Sexual Reproduction Selects for Robustness and Negative Epistasis in Artificial Gene Networks," appearing in the current issue of Nature, the weekly scientific journal for biological and physical sciences research. Collaborating with Christina Burch from the University of North Carolina at Chapel Hill, Azevedo and his team created a very simple model of how genes interact with each other to produce an organism and simulated the evolution of this simple genetic system under different conditions. What they found was quite surprising -- sexual reproduction itself can lead to the evolution of a special feature of the genetic architecture known as negative epistasis that, in turn, confers an evolutionary advantage to sexually reproducing organisms. In other words, sexual reproduction may be self-reinforcing.
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What Are Laxatives?

Age disparity in sexual relationships is the difference in ages of individuals in sexual relationships. Concepts of these relationships, including what defines an age disparity, have developed over time and vary among societies. Differences in age preferences for mates can stem from evolutionary mating strategies and age preferences in sexual partners may vary cross-culturally. There are also social theories for age differences in relationships as well as suggested reasons for 'alternative' age-hypogamous relationships. Age-disparity relationships have been documented for most of recorded history and have been regarded with a wide range of attitudes dependent on sociocultural norms and legal systems.
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Home About MedWorm. Health News. Online ahead of print. The IntelliCage was designed to circumvent issues of traditional behavioral tests, such as frequent human handling.
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