System failure is one of the more common causes.
A.) Guanine = 45
B.) Adenine = (100 - 90 )/ 2 = 10/2 = 5
Hope this helps!
Well,
By the word "deletion" we can deduce that information is lost. Therefore, when a chromosome undergoes a deletion mutation, information is lost. This can have disastrous effects if it is a human chromosome.