Questions
IVF is proved to be a boon for childless couples. Justify this statement.
How has AI technology helped to bring happiness to the farmer? Explain.
Is genetic engineering a boon or a bane for the present era? Give your arguments.
The district animal development centre conducted a camp to fertilize many cows at once. Which technique did that organization adopt at that time? Explain this technique in brief.
A teenage girl who has lost her mental balance became the victim of rape and gave birth to a child. How can the father of the child be detected?
When a cross is made between a black guinea pig and a white guinea pig, the offspring of the first filial generation are all black. Explain why white guinea pigs did not appear in this generation.
Round-seeded pea plants and wrinkle-seeded pea plants are cross-pollinated first and then the offspring obtained are self-pollinated again. The result of the second filial generation is shown in the table below. Now, answer the following questions:
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| R | r
R | RR | Rr
R | Rr | rr
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- What is the ratio fo plants showing dominant and recessive characters?
- Write the genotypic and phenotypic ratio of this generation.
- Among them, which plant is purely round-seeded? Why?
Explain Mendel's law of purity of gametes in heredity.
Explain Mendel's law of dominance in heredity.
Explain with an example that Mendel's experiment can be done not only in plants but also in animals.