Question

Discuss how genes affect population

Answer 1

• Genes are functional segments of DNA and genetic variation or variation in genes always exist in nature.
• Certain genes may confer a selective advantage to a population, like higher growth rate. Such genes may be involved in metabolism or such activities.
• On the other hand, certain genes may be disadvantageous and have a negative effect on the growth of population.
• For example, if a gene contains a lethal mutation and is passed on , may have deleterious effects on the population.
• In short, genes may either increase or decrease the population growth rate, depending on the function served by the gene.