CUET · BIOLOGY · PYQ PAPER 2023

'Colostrum', a yellowish fluid secreted by the mother during early lactation provide which kind of immunity to the newborn?

A Passive Immunity
B Active Immunity
C Innate Immunity
D Vaccination

Verified Solution

Answer & Solution

Correct Answer

(A) Passive Immunity

Step-by-step Solution

Detailed explanation

Passive Immunity

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	List ll
(A) Haemophilia	(I) Increase in a whole set of chromosomes in an organism
(B) Turner's Syndrome	(II) Autosome linked recessive trait
(C) Polyploidy	(III) Absence of one of the 'X' chromosome
(D) Sickle cell anaemia	(IV) Sex linked recessive disease

Choose the correct answer from the options given below:

CUET 2023 Hard

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From CUET

Match List-l with List-ll
Let A and B be any two events

List-l	List-ll
(A) \(P \left( A ^{\prime}\right)\)	(I) \(\frac{P(A \cap B)}{P(A)} ; P(A) \neq 0\)
(B) \(P (\Phi)\)	(II) \(\frac{P(A \cap B)}{P(B)} ; P(B) \neq 0\)
(C) \(P ( A \mid B )\)	(III) \(1-P(A)\)
(D) \(P ( B \mid A )\)	(IV) \(0\)

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CUET 2025 Medium

Match List-I with List-II

List - I	List - II
(A) Angle between \(\hat{i}-\hat{j}\) and \(\hat{i}+\hat{j}\)	(I) \(\pi\)
(B) Angle between \(\hat{i}-\hat{j}+\hat{k}\) and \(-\hat{i}+\hat{j}-\hat{k}\)	(II) \(\frac{3 \pi}{4}\)
(C) Angle between \(\hat{i}+\hat{j}\) and \(-\hat{i}\)	(III) \(\frac{\pi}{4}\)
(D) Angle between \(\hat{i}+\hat{k}\) and \(\hat{k}\)	(IV) \(\frac{\pi}{2}\)

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CUET 2025 Hard

In a compound microscope, the distance between objective lens and eye lens is always:

CUET 2023 Easy

Match List-I with List-II

List-I	List-II
(A) Electric potential V due to a single charge	(I) \(\propto r^0\)
(B) Electric flux due to a positive point charge through sphere of radius r	(II) \(\propto \frac{1}{r^2}\)
(C) Electric intensity E due to a point charge	(III) \(\propto \frac{1}{r}\)
(D) Electric intensity E due to dipole	(IV) \(\propto \frac{1}{r^3}\)

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CUET 2023 Hard

Match List - I with List - II.
List I (Disease) List ll (Causal organism)
(A) Pneumonia (I) Protozoan
(B) Common cold (II) Roundworm
(C) Malaria (III) Bacteria
(D) Ascariasis (IV) Virus

Choose the correct answer from the options given below:

CUET 2023 Hard

Match (List I) with (List II)

(List I)	(List II)
A. For any vector \(\vec{a}, \vec{a} \times \vec{a}\)	\(I\). \(\|\vec{a}\|^2\)
B. For any vector \(\vec{a}, \vec{a} \cdot \vec{a}\)	\(II.\) \(0\)
C. If either \(\vec{a}=\overrightarrow{0}\) or \(\vec{b}=\overrightarrow{0}\), then \(\vec{a} \cdot \vec{b}\) is	\(III.\) \(\|\vec{a}\|\|\vec{b}\|\)
D. If the angle between \(\vec{a}\) and \(\vec{b}\) is \(\theta=0\), then \(\vec{a} \cdot \vec{b}\) is	\(IV.\) \(\overrightarrow{0}\)

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CUET 2023 Medium

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List I (Disease)	List ll (Causal organism)
(A) Pneumonia	(I) Protozoan
(B) Common cold	(II) Roundworm
(C) Malaria	(III) Bacteria
(D) Ascariasis	(IV) Virus