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Science · 2025 · 2 marks
CBSE 2025 · Region 3 · Set 1 · Q24
(a) Explain how the proteins control the 'characteristics' in an organism with the help of an example of 'tallness' trait in pea plant. (b) Name the…
(a)
Explain how the proteins control the 'characteristics' in an organism with the help of an example of 'tallness' trait in pea plant.
(b)
Name the section of DNA that controls the 'characteristics' in an organism.
Marking-scheme solution
(a) Tallness depends on the amount of plant hormone, synthesis of plant hormone depends on the efficiency of enzymes (proteins), synthesis of enzymes (proteins) depends on specific DNA sequence(gene). More the synthesis of hormone, more the pea plant will be taller.
(b) Gene
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.