Question

what are mendel's law of inheritance

Answer 1

Mendels Laws of Inheritance

Based on his experiments, Mendel proposed three laws or principles of inheritance-

Law of Dominance

Law of Segregation

Law of Independent Assortment

Law of dominance and law of segregation are based on monohybrid cross while law of independent assortment is based on dihybrid cross.

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.

This law explains expression of only one of the parental character in F1generation and expression of both in F2generation.

Law of Segregation

This law states that the two alleles of a pair segregate or separate during gamete formationin such a way 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 character segregates independent of the other pair of character.

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 segregate independent of each other, each having a frequency of 25% of the total gametes produced.

Answer 2

Mendel's law of inheritance are :


(1.) LAW OF DOMINANCE .

(2.) LAW OF INDEPENDENCE .

(3.) LAW OF SEGREGATION .



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