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Sickle cell disease is caused by a recessive allele of the haemoglobin gene. When two copies are present (i.e. it is homozygous), many red blood cells become sickle-shaped, leading to disease.

When you are differentiating, use the formula:

The differential of ax^n is (n*a) x^(n-1). Or in words: 'multiply by the power, then reduce the power by 1.'

Hence for our que...

In financial accounting we have different types of depreciation, based on the company's accounting policy. One of the methods is straight line depreciation. 

Assets can be depreciated, so...

Levi Strauss, a French anthropologist in the 1900s, proposed a theory of 'binary opposites' which entails that the majority of narratives in media forms such as books and film contain opposing main charac...

Lots of texts can be intimidating, (and some a bit dry!) so the best way to understand a challenging text is to experience the story before you read it. The best way to do this is to read introductions...