CUET · BIOLOGY · PYQ PAPER 2023

Thalassaemia is a :

A Bone disease
B Blood disease
C Eye disease
D Respiratory disease

Verified Solution

Answer & Solution

Correct Answer

(B) Blood disease

Step-by-step Solution

Detailed explanation

Blood disease

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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List - I (Organism)	List - II (Product)
(A) Streptococcus	(I) Citric acid
(B) Aspergillus niger	(II) Streptokinase
(C) Monascus purpureus	(III) Ethanol
(D) Saccharomyces cerevisiae	(IV) Statin

LIST I	LIST II
A. Phenylketonuria	I. Incomplete dominance
B. Haemophilia	II. 9:3:3:1
C. Snapdragon	III. Pleiotropy
D. Dihybrid cross	IV. Sex-linked