Q3 of 41 Page 190

One experimenter cut the tails of parent rats, what could be the traits in offsprings? Do the daughter rats contain tails or not? Explain your argument. (AS1)

Yes, the daughter rats would contain tails as the cut tails of the parents were acquired characters and not inherited. Thus, when the cut is introduced to a rat’s tail the genetic information is not hampered neither it is changed so the daughter rats will be normal.


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1

What are variations? How do they help organisms? (AS1)

 2

One student (researcher) wants to cross pure tall plant (TT) with pure dwarf (tt) plant, what would be the F1 and F2 generations? Explain. (AS1)

 4

In a mango garden, a farmer saw one mango tree with full of mango fruits but with a lot of pests. He also saw another mango tree without pests but with few mangoes, But the farmer wants the mango tree with full of mango fruits and pest free. Is it possible to create new mango tree which the farmer wants? Can you explain how it is possible? (AS1)

 5

Explain monohybrid experiment with an example, which law of inheritance can we understand? Explain. (AS1)