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MBBS QUESTION #10362

Phenylketonuria (PKU) results from deficiency of phenylalanine hydroxylase, the enzyme that normally converts phenylalanine to:

Tyrosine✔️
Tryptophan
Histidine
Homogentisic acid

Correct Answer Logic:

Phenylalanine hydroxylase normally converts phenylalanine to tyrosine; its deficiency causes toxic accumulation of phenylalanine and its byproducts (phenylketones), which if untreated in infancy causes severe, irreversible intellectual disability — prevented by early detection (newborn screening) and strict dietary phenylalanine restriction.

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Chemistry QUESTION #4352

Question 2

Majority of reactions taking place at ordinary temperatures with $-\Delta H$ are:

Endothermic
Exothermic✔️
Thermally unstable
Reversible

Correct Answer Logic:

Reactions with $-\Delta H$ (negative enthalpy change) release heat to the surroundings and are exothermic. Most spontaneous reactions at ordinary temperature are exothermic.

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Academic/Professional (Social Sciences) QUESTION #6489

Question 3

Which sociological perspective views society as a system of interrelated parts designed to promote stability?

Conflict Perspective
Symbolic Interactionism
Structural Functionalism✔️
Post-Modernism

Correct Answer Logic:

Functionalism posits that social institutions work together to maintain social order and equilibrium.

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English QUESTION #7640

Question 4

"By God", he said" I do not know his name"

He said that by God he does not know his name.
He swore that he did not know his name.✔️
He swore that he did not know my name.
None of these

Correct Answer Logic:

When reporting an oath or emphatic statement like 'By God', we use the reporting verb 'swore' instead of 'said'. The tense changes from present (does not know) to past (did not know) following the sequence of tenses rule.

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Biology Zoology Botany QUESTION #1390

Question 5

In the process of transcription, the RNA polymerase binds to which region of the gene to initiate synthesis?

Promoter✔️
Exon
Intron
Terminator

Correct Answer Logic:

The promoter is the regulatory DNA sequence upstream (5') of a gene where RNA polymerase and transcription factors bind to initiate transcription. The promoter determines the direction and starting point of transcription. Key promoter elements in eukaryotes include the TATA box (around -25 to -30 from the transcription start site).

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Law QUESTION #9491

Question 6

A's suit against B was dismissed for default when A failed to appear on the date of hearing. A applies for restoration, which is also dismissed. A then files a fresh suit on the same cause of action claiming the earlier dismissal was not on merits. B raises the plea of res judicata. Is the second suit barred?

Yes; dismissal for default operates as res judicata
No; but A must pay the costs of the previous suit
Yes; two dismissals operate as constructive res judicata
No; an order of dismissal for default is expressly excluded from the definition of 'decree' under the CPC and does not operate as res judicata✔️

Correct Answer Logic:

Section 2(2) CPC expressly provides that a decree shall not include 'any order of dismissal for default.' Dismissal for default is not a decision on merits. Therefore, it does not operate as res judicata, and a fresh suit on the same cause of action is maintainable, subject to limitation.

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CISA QUESTION #1762

Question 7

What is the primary benefit of applying precedence diagram analysis to BPR projects?

It sequences individual activities in detail
It reveals the cascading impact of changes✔️
It supports root cause analysis
It enables the use of decision tree reporting

Correct Answer Logic:

Precedence diagram analysis shows the ripple effect of changes and identifies the critical path — the minimum set of tasks required to meet the project objective. It helps distinguish high-dependency tasks that must be completed from low-priority tasks that may be dropped.

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English QUESTION #8561

Question 8

What does the idiom 'once in a blue moon' mean?

It has never happened
It happened once
It happens very rarely✔️
None of these

Correct Answer Logic:

'Once in a blue moon' means very rarely.

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Agronomy QUESTION #2102

Question 9

Seed priming is an agronomic technique that improves crop establishment by:

Coating seeds with systemic fungicides to prevent seed-borne diseases during germination
Controlled hydration of seeds to a water potential that allows pre-germinative metabolic activity (DNA repair, enzyme activation, osmoprotectant synthesis) to proceed without radicle emergence, followed by re-drying — resulting in faster, more uniform germination and emergence under field stress conditions✔️
Exposing seeds to gamma radiation to induce beneficial mutations for stress tolerance
Treating seeds with growth regulators to extend their storage life and viability

Correct Answer Logic:

Seed priming (hydropriming, osmopriming with PEG, halopriming with KNO₃/KH₂PO₄, or biopriming with PGPR) allows seeds to advance through Phase I (imbibition) and Phase II (metabolic activity) of germination without entering Phase III (radicle emergence). Benefits: faster mean germination time, improved uniformity, enhanced stress tolerance, and better seedling vigor — particularly valuable for establishment in cold, saline, or drought-prone soils.

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Boilers Mechanical Engineering QUESTION #4018

Question 10

A 'Flash Tank' is used to:

Store fuel
Recover low-pressure steam from high-pressure condensate✔️
Extinguish a fire
Measure the wind speed

Correct Answer Logic:

This improves plant efficiency by using 'flash steam' for heating or process.

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Nursing QUESTION #9178

Question 11

The Five-Star Doctor concept was proposed by WHO for health professionals. For nurses, the equivalent Five-Star Nurse roles include care provider, communicator, and which others?

Administrator, teacher, and researcher✔️
Supervisor, auditor, and manager
Consultant, controller, and inspector
Pharmacist, technician, and designer

Correct Answer Logic:

The Five-Star Nurse concept (adapted from WHO's Five-Star Doctor model) identifies five key roles for community nurses:

Care Provider — direct clinical care
Communicator — therapeutic communication with patients and families
Community Leader / Decision-Maker — community mobilization
Teacher/Health Educator — health promotion and education
Administrator/Manager — managing nursing services and resources

Some frameworks also include Researcher. A Charge/Head Nurse must embody all these roles for comprehensive community health nursing practice.

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Planning QUESTION #4914

Question 12

What is the primary objective of City and Regional Planning according to the curriculum vision?

To maximize urban density
To enhance quality of life through sustainable development✔️
To promote industrial development
To increase property values

Correct Answer Logic:

The vision of the BS program emphasizes enhancing quality of life and environment through participatory, equitable and inclusive sustainable development, making it the core objective.

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Security Measures to Maintain Law and Order QUESTION #7679

Question 13

Special Branch is a part of:

Provincial Police✔️
Federal Investigation Agency
Cabinet Division
None of these

Correct Answer Logic:

Special Branch is a specialized wing of the provincial police forces in Pakistan. It handles intelligence gathering, surveillance, security assessments, and monitoring of sensitive situations within the province to support law enforcement operations.

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Physics QUESTION #367

Question 14

An electric charge in uniform motion produces:

An electric field
A magnetic field
Both magnetic and electric fields✔️
Neither magnetic nor electric fields

Correct Answer Logic:

A moving charge produces both electric and magnetic fields

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English QUESTION #2780

Question 15

What does the PHRASAL VERB 'LOOK AFTER' mean?

To search for something
To look behind oneself
To take care of someone or something✔️
To ignore someone

Correct Answer Logic:

'Look after' means to take care of someone or something. Example: 'Can you look after my cat while I'm on vacation?' The words together form a meaning different from 'look' and 'after' separately.

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Islamic Studies QUESTION #211

Question 16

What was the main reason for factionalism during the Caliphate of Ali (رضي الله عنه)?

Disputes over beliefs
Assassination of Usman (رضي الله عنه)✔️
Economic hardship
None of these

Correct Answer Logic:

The demand for 'Qisas' (retribution) for Caliph Usman led to internal conflicts.

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Chemistry QUESTION #4357

Question 17

Which set of quantum numbers is NOT allowed for an electron?

$n=2,\ l=1,\ m=0,\ s=+\frac{1}{2}$
$n=3,\ l=0,\ m=0,\ s=-\frac{1}{2}$
$n=2,\ l=2,\ m=1,\ s=+\frac{1}{2}$✔️
$n=1,\ l=0,\ m=0,\ s=+\frac{1}{2}$

Correct Answer Logic:

For $n=2$, the allowed values of $l$ are $0$ and $1$ only (since $l$ ranges from $0$ to $n-1$). Having $l=2$ when $n=2$ is not allowed, making this set invalid.

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Math Physics Chemistry Biology QUESTION #4261

Question 18

If a normal person marries with a colour blind female, what will be the possibility of a normal male child?

0%✔️
25%
50%
75%

Correct Answer Logic:

A colour blind female has genotype $X^c X^c$. A normal male has genotype $X^N Y$. All sons receive $X^c$ from mother and $Y$ from father, making all sons colour blind ($X^c Y$). So 0% chance of a normal male child.

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Physics QUESTION #4384

Question 19

When an object attains terminal velocity, its acceleration is:

$9.8\ m/s^2$
Zero✔️
$1\ m/s^2$
$9.8\ m/s^2$ downward

Correct Answer Logic:

At terminal velocity, the net force on the object is zero — drag force equals gravitational force. By Newton's second law: $F_{net} = ma = 0$, so acceleration $a = 0$.

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Islamic Studies QUESTION #639

Question 20

During whose rule did the subcontinent have 25% of the world's total GDP?

Akbar
Aurangzeb Alamgir✔️
Shah Jahan
None of these

Correct Answer Logic:

India's economy peaked during the reign of Aurangzeb.

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