The mutation will occur on the X chromosome. Males are more susceptible to sickle cell amenia because they only carry one X chromosome instead of two when compared to a set of female chromosomes. If a female only has the mutation on one chromosome the disease will not appear. However, when a male recieves the mutation on the X chromosome, the disease would appear, because they only have one X chromosome.
The main source of the energy for all living organism is the sun
Alfred Wegener is often credited as the father of the tectonic playe theory. He got this title when he noticed that the eastern coast of South America and the western coast of Africa appear to fit well together like a puzzle. He used fossil and rock samples from both continents to prove his claim
