How are genetics involved in the theory of evolution?

Answer 1

Finding out how exactly traits are passed on to offspring - with variation - filled in a gap in the understanding of evolution that Darwin pioneered. Darwin did not know or understand how it could come to be that traits propagated through the generations with only minor variations, without blending. He could only assume that there was some mechanism that facilitated this propagation. His fear was that further research into genetics would show that sexual reproduction blends traits. Had that been the case, then evolutionary theory would have been falsified. In stead, what we learned about genetics - starting with Mendel, and culminating in the findings of Watson and Crick - confirmed what we'd learned about evolution in great detail.

Answer 2

Generally put; ' evolution is the change in allele frequency over time in a population of organisms. ' An allele is a different molecular form of a gene. Without gene variance there would be no evolution.

Answer 3

Genes are the hereditary molecules that natural selection actually selects, So, the change in allele ( different molecular form of the same gene ) frequency over time in a population of organisms is the definition of evolution.

Answer 4

Genetics play a crucial role in the theory of evolution by driving the variation in traits within a population. Mutations in DNA can create new genetic variations, while natural selection acts on these variations, determining which traits are passed on to future generations. Over time, the accumulation of genetic changes can lead to the evolution of different species.

Answer 5

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