CUET · BIOLOGY · PYQ PAPER 2025

Cuckoo layings it's egg in the nest of crow for incubation is an example of-

A Ideal Parasitism
B Brood Parasitism
C Fake Parasitism
D Gausian Parasitism

Verified Solution

Answer & Solution

Correct Answer

(B) Brood Parasitism

Step-by-step Solution

Detailed explanation

Brood Parasitism

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.

Same subject

Match List-I with List-II

List-I (Causes of biodiversity losses)	List-II ( Examples)
(A) Habitat loss and fragmentation	(I). Parthenium, Lantana and water hyacinth (Eichornia)
(B) Over-exploitation	(II). Co-evolved plant-pollinator mutualism
(C) Alien species invasion	(III). Deforestation for conversion of forest to grasslands
(D) Co-extinctions	(IV). Excessive fishing and over harvesting of certain fish populations

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CUET 2025 Medium

Read the paragraph and answer the question.
Broadly, genetic disorders may be grouped into two categories - Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration or mutation in the single gene. These disorders are transmitted to the offspring on the same lines as we have studied in the principle of inheritance. The trait may also be linked to the sex chromosome as in case of haemophilia. It is evident that this X-linked recessive trait shows transmission from carrier female of male progeny.
Which of the following is not a Mendelian disorder?

CUET 2023 Hard

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From CUET

Match List-I with List-II

List - I (Differential Equations)	List - II (Degree/Order)
(A) Degree of the differential equation \(\frac{d^3 y}{d x^3}+2 \log x \cdot y=0\)	(I) 3
(B) Order of the differential equation \(\frac{d^4 y}{d x^4}+\left(\frac{d y}{d x}\right)^4+x y=0\)	(II) 2
(C) Degree of the differential equation \(\left(\frac{d^4 y}{d x^4}\right)^2+\left(\frac{d y}{d x}\right)^3+x^2 y=0\)	(III) 1
(D) Order of the differential equation \(\frac{d^3 y}{d x^3}+y\left(\frac{d y}{d x}\right)^3=0\)	(IV) 4

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CUET 2025 Hard

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