Darwin developed the theory of evolution to explain why there are so many different kinds of living things. He could easily observe that offspring of any animals were slightly different from their parents and that this could allow for big changes over thousands of years. He did not know that genes caused the differences. Genes are now very important in the modern theory of evolution.

What most likely led to a change in the widely accepted theory of evolution?

a.new experiments involving genes and evolution
b.experiments with Darwin’s original hypotheses
c.changes that Mendel made to his laws of genes
d.studies of evolution without Mendel’s laws

Charles Darwin is known for his theory of evolution which stated that species change over time as a result of the natural selection and all the species have descended from a common ancestor.

Mendel published his results in 1865 which termed the heredity material as factors but both of them were unknown with the concept of the gene.

Later experiments showed that evolution is correlated with genes or the genes control the evolution by causing mutation in the DNA. These experiments are the ones which were performed to test the original hypothesis of Darwin.

Thus, Option-B is the correct answer.