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Biology · 2026 · 2 marks
CBSE 2026 · Region 3 · Set 2 · Q19
State any four reasons why Mendel succeeded in his genetic hybridisation experiments on garden peas.
State any four reasons why Mendel succeeded in his genetic hybridisation experiments on garden peas.
Marking-scheme solution
• Statistical analysis and Mathematical logic was applied to biology
problems
• Large sampling size that provided credibility to his data
• His inferences from experiments on successive generations proved that his
results pointed to general rules of inheritance rather than just ideas
• Mendel studied characters in garden pea that were manifested in two
opposing traits eg. Tall/dwarf round/wrinkled etc.
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CBSE Class 12 Biology past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.