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Question
Differentiate Between Genotype and Phenotype.
Solution
| Genotype | Phenotype | |
| 1. | It designates the genetic constitution of an individual, which determines the characters. Individuals of the same genotype interbreed and have the same phenotype if they are present in the same environment. | It designates the external appearance of an individual. Individuals of the same phenotype may appear alike but may not interbreed if genetically different. |
| 2. | Genotypes cannot be seen but can be found out by modern techniques like DNA fingerprinting. | Phenotypes can be observed directly in an individual. |
| 3. | Individuals possessing the same genotype usually have the same phenotypic expression. | Individuals who look alike, i.e., have the same phenotype, may or may not have the same genotype. |
| 4. | The genotypic ratio obtained in the F2 generation of a monohybrid cross is 1 : 2 : 1. | In the F2 generation of a monohybrid cross, the phenotypic ratio is 3 : 1. |
Notes
Students should refer to the answer according to their questions.
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