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प्रश्न
Differentiate between genotype and phenotype.
Differentiate between the following:
Genotype and Phenotype
Give one point of difference between genotype and phenotype.
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उत्तर
| 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. |
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संबंधित प्रश्न
A cross used to verify the unknown genotype of the F1 hybrid is a ______.
- A pure tall plant (TT) is crossed with a pure dwarf plant (tt). Draw Punnett squares to show
- F1, generation
- F2 generation.
- Give the phenotype of F2 generation.
- Give the phenotype and genotypic ratios of the F1 and F2 generations.
Explain the Term Mutation.
Explain the Term Recessive character.
Explain the Term Genotype.
Give Technical Term:
Differences occurring within offsprings of the same progeny.
Give Technical Term:
A virus with DNA as heredity material.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Most genetic diseases in man are recessive in character.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
DNA has a double-helical structure.
Choose the Odd One Out
Multiple choice question.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.
A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.
Define Alleles.
During a dihybrid cross with contrasting characters in the F2 generation, parental genotypes will appear in ______.
Two alternative forms of genes or alleles are located on ______.
How many true breeding pea plant varieties did Mendel select as pairs, which were similar except in one character with contrasting traits?
Define the following term:
Gene
