Question

In a population of individuals living in a forest, few individuals developed sickle shaped RBCs in their blood.During a severe malarial attack these individuals with sickle shaped RBCs survived and were not infected with the disease. This can be an example for …………………… which has given that small group ……………………….. over others.

• A. defective RBC synthesis; dominance
• B. genetic variation ; survival advantage
• C. DNA replication ; superiorty
• D. DNA modification and less disease resistance

Answer 1

The correct option is B

genetic variation ; survival advantage

In a population of individuals living in a forest, few individuals developed sickle shaped RBCs in their blood. During a severe malarial attack these individuals with sickle shaped RBCs survived and were not infected with the disease. This can be an example forgenetic variation which has given that small group survival advantage over others.