(1) Mendel’s law of segregation is also called Law of purity of gametes because, during formation of gametes, the alleles separate/ segregate from each other and only one allele enters a gamete.
(2) The separation of one allele does not affect other. Since single allele enters a gamete means gametes will be pure for a trait. E.g. The contrasting characters such as tall (T) and dwarf (t) present in F hybrid (Tt) segregate during the formation of gametes.
(3) Owing to this, two types of gametes i.e. T and t are formed which are pure for the characters which they carry.
(4) Thus for example:
