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Inheritance and Variation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYInheritance and Variation4 Marks
Question
Distinguish Between: Homozygous and Heterozygous.
✓

Answer

HomozygousHeterozygous
1. Individuals with similar gene pairs are called homozygous.1. Individuals with different gene pairs are called heterozygous.
2. Homozygous individuals form only one type of gametes.2. Heterozygous individuals form more than one type of gametes.
3. Individuals with similar gene pairs TT, tt, RR and rr are homozygous.3. Individuals with dissimilar gene pairs Tt and Rr are heterozygous.
4. Homozygous are also called pure breed.4. Heterozygous are referred to as hybrids.

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