Q35 of 167 Page 192

Name two human traits which show variation.

(B) Human height (Tall or dwarf) and Ear lobe (free or attached) show variations in human.

State Mendel's second law of inheritance.

What do you understand by the term 'variation'?

How does the creation of variation in a species ensure its survival?

(a) What are genes? Where are they located in our body?