Learning Chemistry is thus interesting and advantageous, since it opens up vistas for related studies and advanced career options. Yet, the fact remains that Chemistry puts you on a tricky platform while working on a problem, equation or lab work. There is a possibility of missing a link in your understanding of the concepts as well.
BBC : February 26, 2016, Friday Sperm have been made in the laboratory and used to father healthy baby mice in a pioneering move that could lead to infertility treatments. The Chinese research took a stem cell, converted it into primitive sperm and fertilised an egg to produce healthy pups.