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Biology · 2024 · 3 marks
CBSE 2024 · Region 1 · Set 1 · Q23
(a) Name and write two characteristics of the type of DNA that forms the basis of DNA fingerprinting technique. (b) Mention any two applications of…
(a)
Name and write two characteristics of the type of DNA that forms the basis of DNA fingerprinting technique.
(b)
Mention any two applications of this technique.
Marking-scheme solution
(a)
-Satellite DNA / Repetitive DNA/ VNTR
-Do not code for any protein , form a large portion of human genome, show high
degree of polymorphism
(b)
useful in forensic applications , helps in determining population and genetic diversities ,forms the basis of paternity testing , to study evolution, to trace path of hereditary diseases.
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CBSE Class 12 Biology past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.