Mendel's laws of inheritance
There are four laws of inheritance given by Mendel.
1) Concept of factors
2) Law of Dominance
3) Law of segregation
4) Law of independent assortment
According to concept of factors,each trait will be controlled by a pair of factor.
eg.TT is controlling tallness in pea.
Law of Dominance is applicable in hybrid condition.eg Tt is for tallness.
T is dominating factor and t is recessive.
During the gametogenesis,the pair of factor will separate out.This is Law of segregation.
Law of independent assortment is applicable for dihybrid cross.
According to this law each and every factor have equal potential to form new combinations in second generation of Dihybrid cross.
eg F 2 ratio for YYRR X yyrr will be 9:3:3:1
