Question 2: Differentiate between the following − (a) Dominance and Recessive (b) Homozygous and Heterozygous (c) Monohybrid and Dihybrid.
Class 12 - Biology - Principles of Inheritance and Variation Page 93
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those character which able to express himself in f1 generation is called dominance character.
those character which fails to express himself in f1 generation is called recessive character.
homozygous means both the allele in a gene are same i e TT or tt.
heterozygous means both the allele in a gene are different i e Tt .
Monohybrid means when we choose only one pair of contrasting character in a cross. e g tall and short.
Dihybrid means when we chosse two pair of contrasting character in a cross.
e g Tall and red and short and yellow.
those character which fails to express himself in f1 generation is called recessive character.
homozygous means both the allele in a gene are same i e TT or tt.
heterozygous means both the allele in a gene are different i e Tt .
Monohybrid means when we choose only one pair of contrasting character in a cross. e g tall and short.
Dihybrid means when we chosse two pair of contrasting character in a cross.
e g Tall and red and short and yellow.
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