Â· 4 years ago. A mutation is a change in the genetic material of an organism. We are made from trillions of cells, each with a nucleus composed of DNA â a set of instructions that tells the cell what to do. Cells copy themselves with astonishing accuracy, but every now and then a piece of code is copied incorrectly.
Identical (or monozygotic) twins happen when a fertilized egg splits into two separate babies-usually within the first twelve days of Mom's pregnancy. After twelve days, the egg may not split entirely and result in conjoined twins.
www.avianbiotech.com As for why the eggs aren't hatching, you may have two females, or the eggs aren't fertile. Usually a pair will mate and produce the first egg 10 days after mating. Then another egg is laid every other day until the clutch totals 4 to 6 eggs.After 6 or 7 days, you should be able to tell if the eggs are fertile by candling them.sually a pair will mate and produce the first egg 10 days after mating. Then another egg is laid every other day until the clutch totals 4 to 6 eggs. After 6 or 7 days, you should be able to tell if the eggs are fertile by candling them.