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Lab Attendence

lab 1 --Z3331951 11:49, 25 July 2012 (EST) Lab 2 Z3331951 10:01, 1 August 2012 (EST)

Lab 1 Assessment

The 2010 Nobel prize was awarded to Robert Edwards for his pioneering work in developing in vitro fertilisation. Details can be seen on this page

An interesting article regarding fertilisation was authored by Eisenberg et al and published in July 2012, titled Sperm counts and sperm sex ratio in male infertility patients. The paper attempts to partially account for the recent decline in male births in some industrialised societies. In order to do this, they have collected sperm samples from both fertile and infertile men. The proportion of X and Y chromosome carrying sperm was them investigated for each of the samples. This is relevant as it is the sperm that determine the sex of the zygote. Eisenberg and his team found that motile and fertile sperm actually have a predisposition to carrying the Y chromosome, indicating that the higher a mans reproductive potential, the greater his chances of having a male child.