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problem 1: What do you mean by the amniocentasis? Why is there a statutory ban on this? Give some reason.

problem 2: The non-haemophilic couple was informed by their doctor that there is a possibility of a haemophilic child being born to them. Draw a checker board and determine the percentage of possibility of such a child among progeny.

problem 3: How do Darwin’s finches describe the adaptive radiation?

problem 4: In a specific plant species, majority of the plants bear purple flowers. Very few plants bear the white flowers. No intermediate colors are observed. If you are given a plant bearing purple flowers, how would you discover that it is a pure breed for that trait? Describe.

problem 5: Why is the introduction of genetically engineered lymphocytes to an ADA deficiency patient not a permanent cure? Propose a possible permanent cure.

problem 6: In which method do we use Taq polymerase enzyme and describe why?

problem 7: Distinguish between a detrivore and a decomposer giving an illustration of each.

problem 8: DDT content in the water of a lake which supplies drinking water to the close villages is found to be 0.004 ppm. The pelicans of that area are reported to encompass 2.6 ppm of DDT. Why has the concentration raised in these birds?

What possible damage will this cause to the bird population? Name the fact.

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  • Category:- Biology
  • Reference No.:- M99141

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