The " rule " of genes?
An allele is a different molecular form of the same gene. So, the evolutionary definition.
Evolution is the change in allele frequency over time in a population of organisms.
That is their " role " if that is what you mean. They are the molecules that are inherited, thus causing changes over time in populations, which is evolution.
Evolution is the result of a process called survival of the fittest. Genes are part of the mechanism by which this happens.
In the past century there will be a different classification of human evolution
Genes and evolution
prity much sumed up is that if you have good genes you survive and if you have bad genes you don't.
Recessive genes are replaced by dominant genes over time and unfavorable genes die out.
Genes play a critical role in evolution by influencing an organism's traits and characteristics. Changes in genes over generations (mutations, genetic drift, etc.) can lead to new variations that may be advantageous in certain environments, thus driving evolution. The environment also plays a significant role by selecting for certain traits that enhance an organism's survival and reproduction, shaping the direction of evolution.
Spread the genes apart.
The gene theory proposes that genes are the units of heredity and carry genetic information. In the context of evolution, genes play a key role in driving the variation and inheritance of traits within populations over generations, which is a fundamental mechanism of natural selection. Therefore, understanding genes and their transmission is essential in explaining how evolution occurs.
It changes genes and so passes them on
Evolution
Punctuated equilibrium
Evolution.