London, England is at (Greenwich Mean Time) GMT. Perth, Australia is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England. Perth is 8 hours ahead oâ¦f London. During the Northern Hemisphere summer, London, England is at (British Summer Time) BST. Perth Australia is (British Summer Time) BST +7 hours. Perth is 7 hours ahead of London during the Northern Hemisphere summer.
Answered by The WikiAnswersÂ® Community. Making the world better, one answer at a time. A change in the nucleotide sequence of DNA is called a mutation. A change in the nucleotide sequence of DNA is called a <b>mutation</b>.
But, the truth is that most mutations are not that extreme. In biology, a mutation is any change in the nucleotide sequence of DNA. Some mutations affect large sections of DNA, and others only affect certain points along the DNA strand. These small, specific mutations are called point mutations.