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Inheritance and Variation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYInheritance and Variation4 Marks
Question
Distinguish Between: Phenotype and Genotype.
✓

Answer

Phenotype

Genotype

1. Phenotype refers to the outward appearance of an individual such as shape, colour, sex, etc.

1. Genotype refers to the genetic composition of an individual.

2. Phenotype can be observed directly in an individual.

2. Genotype cannot be seen, but can be found out by modern techniques like DNA fingerprinting.

3. Individuals resembling each other may or may not have the same genotype.

3. Individuals possessing the same genotype usually have the same phenotypic expression.

4. The phenotypic ratio obtained in the F2 generation of a monohybrid cross is 3 : 1.

4. The genotypic ratio obtained in the F2 generation of a monohybrid cross is 1 : 2 : 1.

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