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प्रश्न
Mention the Phenotype and Genotype ratios of the offspring in F2 generation.
उत्तर
Phenotypic ratio of the offspring in F2 generation: 3:1
Genotypic ratio of the offspring in F2 generation: 1:2:1
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संबंधित प्रश्न
What is Neo-Mendelian genetics?
In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).
(i) What is the phenotype and genotype of the F1 generation if a plant bearing pure axial flowers is crossed with a plant bearing pure terminal flowers?
(ii) Draw a Punnett square board to show the gametes and offsprings when both the parent plants are heterozygous for axial flowers.
(iii) What is the phenotypic ratio and genotypic ratio of the above cross shown in (ii)?
(iv) State Mendel’s Law of Dominance.
(v) Name two genetic disorders commonly seen in human males.
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
What is the phenotypic ratio and genotypic ratio of the above cross in (ii)?
State Mendel's law of dominance.
Suppose you are given two pairs of contrasting characters: Seed colour → yellow and green , seed coat → round and wrinkled.
Fill in the following table to show that F2 generation according to the principle of independant assortment as given by Mendel.
| Selfing among hybrids of F1 | RY | Ry | rY | ry |
| RY | ||||
| Ry | ||||
| rY | ||||
| Ry | ||||
| F2 generation |
Choose the correct answer:
If any of Mendel's characters were linked; one would have been unable to derive.
Which of the following characters can be acquired but not inherited?
Which is the one characteristic of the parents that can be inherited by their children?
Read the following and answer from given below:
Prashant wanted to find the genotype of a pea plant bearing purple coloured flowers in his kitchen garden. For this, he crossed purple-flowered plants with white-flowered plants. As a result, all plants which were produced had purple flowers only. Upon selfing these plants, 75 purple flower plants and 25 white flowers plants were produced. Now, he can determine the genotype of a purple-flowered plant by crossing it with a white-flowered plant.
The character i.e., the purple colour of the flowers that appeared in the first filial generation is called ______
