Eukaryotic cells posses a nucleus the purpose of the nucleus is it stores DNA which is the genetic material for the cell DNA acts as an instruction manual for the other organelles in the cell. While prokaryotic cells do not have a nucleus they still have dna but it’s floating around freely
Matter cannot be created or destroyed. this means that the number of atoms before the reaction has to equal the number of atoms after the reaction.
The event is called mutation
A mutation is a rare, accidental or induced modification of genetic information in the genome, specifically DNA.Depending on which part of the genome is affected, the consequences of a mutation may vary.
A mutation is said to be hereditary if the mutated genetic sequence is transmitted to the next generation (see germinal mutations).
It is one of the elements of biodiversity and one of the many factors that may be involved in the evolution of the species (for example: production of new protein which help the bacteria to grow in hostile environment like fungi).
