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Analysis Of Nick Lane's Life Ascending : The Ten Great Inventions Of Evolution

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Nick Lane’s book, Life Ascending; The Ten Great Inventions of Evolution, published in 2009, is an excellent piece that brings together various elements of life itself, such as, DNA, photosynthesis and complex cells. However this critique will be based on Chapter 5 of his renown book; Sex – The Greatest Lottery on Earth. Dr Nick Lane is a biochemist who has won several awards for the research of evolutionary science he has completed and is known as one of the founding members of the UCL Consortium for Mitochondrial Research. Each of his four books released were a huge success and he is still respected for his work and research. All in all, Lane is considered as a source that is reputable and it is safe to say that his current book being …show more content…

Despite all this, the question keeps coming back; why is sexual reproduction still the choice of reproduction or even exist? Why can’t all species reproduce asexually?
Without sexual reproduction in humans, offspring would just not be produced as our species have not evolved to reproduce without the crucial two sex cells from the male and the female. A process known as chiasmata, the switching of genetic material to create new combinations of chromosomes for the offspring from the mother and father, is very important as it states that through chiasmata, sex produces greater variation as the recombination hatches a product that contains genetic information unlike any other, making offspring that natural selection can work with instead of against. This process also removes harmful mutations throughout generations through the ‘recombination’ of chromosomes. August Weismann and Darwin agree on this concept but instead of believing that sex benefits purely the individual, Weismann stated that it was a benefit to the population, as the combinations of good and bad genes would be made evenly and would cancel any benefits for the individual. However, the benefits would only be seen after several generations when natural selection eventually eliminates the bad combinations. For example, it is beneficial when a large amount of variation exists within a population

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