September 2007
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Written by J.J. Yong on September 10th, 2007 with no comments.
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We are getting more complex than we thought as one present human genome has slight differences than the one which was mapped in the year 2000. A study has discovered that there are around 1 to 2 percent differences which is as much as differed between humans and chimps.
In other words, differences of some sets of genes can be identified that makes study of genealogy more challenging and significant in understanding of risk for disease if more different complete human genomes are obtained. This could be only possible when comparison among large populations of complete human genomes.
Over the next five years, around 10,000 of different complete of human genomes will be mapped to delineate the functional genes that involve in lowering or raising the risk of diseases.
Currently, these two scientist – James Watson (one of the co-founder of DNA structure) and geneticist Craig Venter has their genome sequenced which is a step to public accessibility of this information versus only being in secret databases.
Message from these two genome contributors: “You don’t have to fear your genetic information.”
Links (via The Online NewsHour):
Written by J.J. Yong on September 10th, 2007 with no comments.
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Y chromosome is the only chromosome that you find in all males. It has distinctive shape and function as it involves in sex-determination during embryo development (A human male contains one X chromosome and one Y chromosome).
Other than that, Y chromosome contains paternal DNA which is used in determining father’s ancestry (patrilineality) as it is passed from father to son. It is because most of the Y chromosome passes almost unchanged from generation to generation.
In search of our parent’s ancestry enable us to understand our roots and our anthropological history.
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Written by J.J. Yong on September 8th, 2007 with no comments.
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