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Biology · 2026 · 2 marks
CBSE 2026 · Region 3 · Set 1 · Q17
(a) A person complains of persistent itching in the groin region and scalp. The person also shows dry and scaly lesions on skin, nails, etc. (i)…
(a)
A person complains of persistent itching in the groin region and scalp. The person also shows dry and scaly lesions on skin, nails, etc.
(i)
Identify the disease.
(ii)
Name its two causative agents.
(iii)
Mention its mode of transmission.
OR
(b)
A girl develops sneezing, watery eyes and difficulty in breathing every time she visits a flower garden.
(i)
Identify the condition.
(ii)
Name the immune component responsible for this condition.
(iii)
Name the chemical released.
(iv)
State one medicine used to treat such a condition.
Marking-scheme solution
(a)(i)
Ringworm
(ii)
Epidermophyton, Trichophyton, Microsporum
(iii)
From soil/ using towels/ clothes/ comb of infected person
OR
(b)(i)
Allergy
(ii)
Ig E antibodies
(iii)
Histamine, Serotonin
(iv)
Anti histamine, adrenaline, Steroids
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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.