Question

mendel's law of inheritance

Answer 1

MENDEL'S LAWS OF INHERITANCE :

1. Law of Dominance :
Out of a pair of contrasting characters present together, only one( called the dominant character) is able to express itself while the other remains suppressed. The recessive or the suppressed character can express only when the pair consists of both recessives.

2. Law of Segregation (or Law of purity of gametes) : 
The two alleles of a gene when present together in a hetero-zygote state, do not fuse or blend in anyway, but remain distinct and segregate during meiosis or in the formation of gametes so that each meiotic product or gamete will carry only one of them.

3. Law of Independent Assortment :
When two pairs of traits are combined in a hybrid, segregation of one pair of characters is independent of the other pair of characters.

Answer 2

• According to Mendel's First Law of Inheritance or The Law of Dominance, ''In the cross between two parents who differ in one genetic characteristic for which they are both homozygous, all the offsprings in the first filial generation are equal to the examined characteristic in the genotype and phenotype showing the dominant trait...''
• According to Mendel's Second Law of Inheritance or The Law of Segregation, ''The characteristics or the traits of an organism are determined by internal factors which occur in pairs. Only one of a pair of such factors can be present in a single gamete...''
• According to Mendel's Third Law of Inheritance or The Law of Independent Assortment, ''In the inheritance of more than one pair of traits in a cross simultaneously, the factors responsible for each pair of traits are distributed independently to the gametes...''

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