According to NCERT which is Mendel's 1st, 2nd and 3rd law if inheritance?
Please find below the answer:
There are three laws of inheritance given by Mendel. These are as follows:
Law of dominance- According to this law, characters are controlled by discrete units called factors, which occur in pairs with one member of the pair dominating over the other in a dissimilar pair.
Law of segregation- This law states that the two alleles of a pair segregate or separate during gamete formation such that a gamete receives only one of the two factors. In homozygous parents, all gametes produced are similar; while in heterozygous parents, two kinds of gametes are produced in equal proportions.
Law of independent assortment- When two pairs of traits are combined in a hybrid, one pair of characters segregates independently of the other pair of characters. In a dihybrid cross between two plants having round yellow (RRYY) and wrinkled green seeds (rryy), four types of gametes (RY, Ry, rY, ry) are produced. Each of these segregates independent of each other, each having a frequency of 25% of the total gametes produed.