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How do you recognise that it is deoxyribose nucleic acid?
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Answer Posted / rakesh
DNA is having double helix structure it is having two
spirally coiled chains which looks like ladder.
these chains actually are made up of sugars and nitrogen
bases .In between these chains 4 nitrogen bases are present.
They are adenine,guanine,thiamine,cytosine.Adenine always
pairs with thiamine by two hydrogen bonds where as guanine
always pairs with cytosine by three hydrogen bonds.
By all these fatures one can distuinguish that it is DNA.
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The ABO blood system has been employed to settle cases of disputed paternity. Suppose, as an expert in genetics, you are called to testify in a case where the mother is type A, the child is type O and the alleged father is type B. How would you respond to the following statements of the attornies: a. "Since the mother has type A, the type O of the child must have come from the father and since my client is type B, he obviously could not have fatered the child." Made by the attorney of the alleged father. b. "Further tests revealed that this man is heterozygous and therefore he must be the father." Made by the mother's attorney.
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