The characteristics which are transmitted from parents to their offsprings are called inherited traits. E.g. free and attached earlobes.
Why males are called heterogametic?
Because they have dissimilar sex chromosomes.
Name the chemicals which were essential for origin of life.
Proteins and nucleic acid
![NTSE-Scholars [An Addrress for Young Talents]](/wp-content/uploads/2011/11/cropped-header-strip.jpg)