Explain the role of genes in inheritance.

Genes are the basic units of heredity that control the transmission of traits from parents to offspring.

They are segments of DNA located on chromosomes and contain the instructions for the development and functioning of an organism. Each gene is responsible for a specific trait or characteristic, such as eye color, height, or blood group.

Genes are inherited in pairs, with one allele coming from each parent. These alleles can be dominant or recessive, determining how a trait is expressed in the offspring.

During reproduction, genes are passed through gametes, ensuring that genetic information is transferred from one generation to the next.

Genes also contribute to variation, as different combinations of alleles lead to differences among individuals.

Thus, genes play a central role in inheritance, controlling traits and ensuring continuity and diversity in living organisms.