10. Which among the following is a heredity – related factor?
( 1 ) Participation in social activities
( 2 ) Attitude towards the peer group
( 3 ) Language
( 4 ) Colour of eyes
Ans- (4)Colour of eyes
Reason :- as human being shared a similar genetic structure, the basic pattern of their development also remains the same. This similarity is result due to certain hereditary factors. For example, a child may inherit many genetic traits from his her lineage such as colours of eyes, skin and hair, body type and height.