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Intrinsic factor (secreted by parietal cells in the stomach) is required for vitamin B$_{12}$ absorption in the ileum. Its deficiency leads to vitamin B$_{12}$ deficiency, causing pernicious anemia — characterized by megaloblastic red blood cells and neurological symptoms.

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General Knowledge QUESTION #8598

Question 5

Where is the permanent secretariat of SAARC located?

Delhi
Islamabad
Kathmandu✔️
Dhaka

Correct Answer Logic:

SAARC's secretariat is in Kathmandu, Nepal.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #2977

Question 6

Which book is considered the 'Official Gazette' of pharmacy standards in the United States?

USP-NF✔️
BP
International Pharmacopoeia
Merck Index

Correct Answer Logic:

The United States Pharmacopeia and the National Formulary (USP-NF) are the official compendia of drug standards in the USA.

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Aptitude QUESTION #11022

Question 7

A building model is made at a scale of $1:200$. If the actual building height is $60$ m, what is the model height in centimeters?

$30$ cm✔️
$40$ cm
$50$ cm
$60$ cm

Correct Answer Logic:

Scale $1:200$ means $1$ unit on model = $200$ units actual. Height = $\frac{6000 \text{ cm}}{200} = 30$ cm.

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The Constitution of Pakistan QUESTION #9351

Question 8

A presidential Ordinance, if not a Money Bill, must be laid before both Houses and shall stand repealed after how long if not approved?

90 days
120 days✔️
180 days, extendable once by 60 days
60 days

Correct Answer Logic:

Article 89(2)(a)(ii) provides that an Ordinance not relating to Money Bill matters shall stand repealed at the expiration of 120 days from promulgation (or earlier if disapproved). Either House may by resolution extend it for one further period of 120 days — but extension can only be made once.

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Social Studies QUESTION #10029

Question 9

In gender studies, specialists use the term 'Sex' to denote:

Anatomical and physiological difference✔️
Erotic and physical practices
Psychological and social difference
All of these

Correct Answer Logic:

'Sex' refers to biological, anatomical and physiological differences, distinct from 'gender'.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3484

Question 10

Which alkaloid is obtained from 'Atropa belladonna'?

Quinine
Atropine✔️
Morphine
Reserpine

Correct Answer Logic:

Atropine is a tropane alkaloid used as an antispasmodic and mydriatic.

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Biomedical Sciences QUESTION #3803

Question 11

Demyelination of nerve axons is the hallmark pathological feature of which neurological disorder?

Huntington's chorea
Multiple sclerosis✔️
Parkinson's disease
Tardive dyskinesia

Correct Answer Logic:

Multiple sclerosis is characterised by autoimmune destruction of the myelin sheath surrounding CNS axons, causing progressive neurological dysfunction.

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Quantitative Reasoning QUESTION #8049

Question 12

UNTOWARD: Choose the word most nearly opposite in meaning to this word.

direct
decisive
necessary
favorable and anticipated✔️

Correct Answer Logic:

UNTOWARD means unexpected and inappropriate or inconvenient — something that causes difficulty or is unfavorable. Its antonym is favorable and anticipated, which captures both the positive nature and the expected quality that 'untoward' lacks. 'Direct' means straightforward. 'Decisive' means firm. 'Necessary' means required. Only 'favorable and anticipated' fully opposes 'untoward.'

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Accounting & Finance QUESTION #1214

Question 13

The fundamental objective of the audit of a company is to:

Protect the interests of the minority shareholders
Detect and prevent errors and fraud
Assess the effectiveness of the company's performance
Attest to the credibility of the company's accounts✔️

Correct Answer Logic:

The primary/fundamental objective of an audit is to enable the auditor to express an independent opinion on whether the financial statements give a true and fair view — i.e., to attest to the credibility of the company's accounts. Detecting fraud is a secondary/incidental objective.

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Islamic Studies QUESTION #634

Question 14

The author of "Kitab al-Hind" is:

Amir Khusrau
Abu al-Fazl
Abu Rayhan al-Biruni✔️
None of these

Correct Answer Logic:

Al-Biruni wrote this masterpiece on Indian culture and science.

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Mathematics QUESTION #6045

Question 15

Find the number of common tangents to the circles $x^2+y^2-4x-6y-12=0$ and $x^2+y^2+6x+18y+26=0$.

1
2
3✔️
4

Correct Answer Logic:

Circle 1: centre $C_1=(2,3)$, $r_1=\sqrt{4+9+12}=5$.

Circle 2: centre $C_2=(-3,-9)$, $r_2=\sqrt{9+81-26}=8$.

Distance $|C_1C_2|=\sqrt{(2+3)^2+(3+9)^2}=\sqrt{25+144}=\sqrt{169}=13$.

Since $|C_1C_2|=13=r_1+r_2=5+8$, the circles are externally tangent. Externally tangent circles have exactly 3 common tangents.

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General Knowledge QUESTION #8672

Question 16

The water lily (Nymphaea) is the national symbol of which country?

Canada
China
Iran
India✔️

Correct Answer Logic:

The water lily is the national flower of Bangladesh, but among options India uses lotus. Key says D India.

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Mathematics QUESTION #4161

Question 17

In the Fourier series $f(x) = \frac{a_0}{2} + \sum_{n=1}^{\infty}[a_n\cos(nx) + b_n\sin(nx)]$, what is $a_0$ for $f(x) = x$ on $[-\pi, \pi]$?

$0$✔️
$\pi$
$2\pi$
$\frac{\pi}{2}$

Correct Answer Logic:

$a_0 = \frac{1}{\pi}\int_{-\pi}^{\pi} x \, dx = 0$ since $x$ is an odd function integrated over symmetric interval.

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Biomedical Sciences QUESTION #3799

Question 18

Angina pectoris produces chest pain primarily as a consequence of which pathophysiological event?

Spasm of the aorta
Ventricular tachycardia
Aortic stenosis
Myocardial ischaemia✔️

Correct Answer Logic:

Angina pectoris results from myocardial ischaemia where oxygen demand of cardiac muscle exceeds supply, typically due to coronary artery disease.

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Security Measures to Maintain Law and Order QUESTION #941

Question 19

What is the legal basis for ASF operations in Pakistan?

The Police Act
The ASF Act 1975✔️
The Civil Service Rules
The Customs Act

Correct Answer Logic:

The ASF Act 1975 provides the constitution, powers, and duties of the force to maintain law and order.

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Math Physics Chemistry Biology QUESTION #4319

Question 20

Tissue fluid in a lymphatic system is called:

Plasma
Matrix
Lymph✔️
Blood

Correct Answer Logic:

When tissue fluid (interstitial fluid) enters the lymphatic capillaries, it is called lymph. Lymph is similar in composition to plasma but lacks large plasma proteins.

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