In sexual reproduction, evolution can occur in populations through the process of genetic variation and natural selection. One statement that best explains this concept is:
C. New combinations of genes resulting from sexual reproduction result in variation within the population.
Here's why this statement is correct:
1. Sexual reproduction involves the fusion of genetic material from two individuals, leading to offspring with a unique combination of genes.
2. This genetic diversity created through sexual reproduction introduces variations within the population, allowing for different traits to be expressed.
3. These new combinations of genes can provide advantages in adapting to changing environments or challenges, which can lead to the evolution of populations over time.
By producing offspring with diverse genetic makeup, sexual reproduction increases the chances of beneficial traits being passed on and contributes to the overall genetic diversity within a population.