What is the role of genes in evolution?
a
The genes of most surviving parents have only dominant alleles.
b
Only recessive genes can be acted on by natural selection.
c
Parents with recessive genes die from overproduction.
d
Only traits that are controlled by genes can be acted on by natural selection.
1 answer
d. Only traits that are controlled by genes can be acted on by natural selection. Genes play a crucial role in evolution as they are the units of heredity that are passed down from generation to generation. Natural selection acts on the variation in genes within a population, determining which traits are advantageous and therefore more likely to be passed on to future generations. This process leads to the evolution of populations over time.