Page 44 - The Origin of Life and the Universe - International Conference 2016
P. 44
The Origin of Life and the Universe
These two elements, unguided and natural selection are the hallmarks of
Darwinian or Neo-Darwinian evolution. The mutations themselves occur
due to different types of stress that are encountered by the organism. Such
as UV radiation, hormone responses to stress or heat. And as a result the
DNA can become damaged, it can break. But repair mechanisms exist
within the cell, they can repair and rejoin the double stranded DNA ends.
Mutations can then occur either through damage done to the DNA or
through the repair mechanism itself. Unguided mutations in the nucleic
acid sequence can also occur when the DNA is replicated by the polymerase
protein. As it copies the nucleic acid sequence sometimes it makes
mistakes. And it has the ability to actually correct mistakes but it is not
100% accurate in correcting mistakes. So it still makes a mistake about
one in every ten million base pairs. So mutations can result from damaged
or broken DNA, repair of DNA, or replication of DNA.
The main point is that according to evolutionist claims: mutations
create variability and when there is variability, selection can occur through
natural processes. This means when a mutation occurs that allows an or-
ganism to survive and thrive in a given environment then that organism
will survive and thrive. If on the other hand it is a deleterious mutation,
then the organism will not survive nor thrive.