Question

Sonam is a bright, fair girl. Her parents are dark complexioned. Her friends in college regularly passed remarks asking her how she was so fair or what treatment she had undergone to become fair. Sonam got irritated at their repeated embarrassing questions. Her friend Srijita came to her support and invited the friends to the Biology lab where she explained the inheritance of body colour. The friends realised their mistake and stopped teasingSonam. 

1. What are the values observed in Srijita.

2. Name the pattern of inheritance involving in inheritance of color. 

3. Give other examples about the same pattern of inheritance.

Answer 1

1) Humanity and responsibility towards a friend. She also used her knowledge to educate her friends. 

2) Polygenic inheritance or quantitative inheritance 

3) Height, weight, skin colour, hair colour, size of some organs, face form, intelligence etc of human beings are examples of quantitative inheritance.