Asexual reproduction essay

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The Advantages and Disadvantages of Sexual and Asexual Reproduction In order to avoid extinction species must reproduce and pass their genes on to the next generation, thus ensuring the survival of the population. For reproduction to occur cell division is necessary and this can be divided into two categories according to the behaviour of the chromosomes, they are known as mitosis and meiosis. Mitosis is when the daughter cells finish up containing exactly the same number of chromosomes. Asexual and Sexual Reproduction in Soft Corals The battle between sexual and asexual reproduction is a competition that has been ongoing for millions of years.

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Why does sex -- that is, sexual reproduction -- exist? In many ways, asexual reproduction is a better evolutionary strategy: Only one parent is required, and all of that parent's genes are passed on to its progeny. In sexual reproduction, only half of each parent's genes are passed to the next generation. What's more, a mate must be found.
An isolated population of honeybees, the Cape bees, living in South Africa has evolved a strategy to reproduce without males. A research team from Uppsala University has sequenced the entire genomes of a sample of Cape bees and compared them with other populations of honeybees to find out the genetic mechanisms behind their asexual reproduction. Most animals reproduce sexually, which means that both males and females are required for the species to survive. Normally, the honeybee is no exception to this rule: the female queen bee produces new offspring by laying eggs that have been fertilised by sperm from male drones.
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