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Math Physics Chemistry Biology QUESTION #7770

Viruses are NOT capable of which of the following functions?

Forming crystals
Excreting waste✔️
Infecting bacteria
Mutating

Correct Answer Logic:

Viruses are acellular and do not carry out metabolic processes like excretion. They can form crystals outside hosts, infect bacteria, and mutate (e.g., RNA viruses).

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MCQs Section QUESTION #4467

Question 8562

چراغ پا ہونا محاورہ ہے اس کا مفہوم کیا ہے؟ (What is the meaning of the idiom 'Charagh pa hona'?)

غصے کی کیفیت✔️
روشنی بکھیرنا
خوشیاں بانٹنا
کھڑا رہنا

Correct Answer Logic:

'Charagh pa hona' is an idiom meaning to become extremely angry or enraged.

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Islamic Studies QUESTION #229

Question 8563

Zainab bint Khuzaima (RA) belonged to the Messenger of Allah ﷺ as:

Aunt
Wife✔️
Mother-in-law
None of these

Correct Answer Logic:

She was one of the Ummahat ul Momineen, known as 'Umm al-Masakin' (Mother of the Poor).

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5774

Question 8564

Verapamil is a Class IV antiarrhythmic. What is its mechanism?

Sodium channel blockade
Potassium channel blockade
Calcium channel blockade✔️
Beta-receptor antagonism

Correct Answer Logic:

Class IV agents inhibit slow-channel calcium ion transport.

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Biology Zoology Botany QUESTION #10807

Question 8565

Which group of animals produces urea as their primary nitrogenous waste product?

Cartilaginous fish✔️
Insects
Bony fish
Birds

Correct Answer Logic:

Cartilaginous fish (sharks, rays — class Chondrichthyes) are unique among fish in retaining high concentrations of urea in their blood and tissues (~2–2.5% urea). This serves as an osmolyte to maintain osmotic balance with seawater. Bony fish excrete mostly ammonia; insects and birds excrete uric acid; mammals excrete urea but are not fish. Ureotelic animals include cartilaginous fish, adult amphibians, and mammals.

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The Elections Act 2017 QUESTION #9439

Question 8566

Under Section 84(3), if a voter fails to prove identity through biometric or new technology adopted under sub-section (2), what is the consequence?

The voter is referred to the Returning Officer for a decision
The voter is refused a ballot paper
Such failure shall not disentitle the voter to cast his vote if otherwise entitled✔️
The voter must cast a tendered ballot paper

Correct Answer Logic:

Section 84(3) states: 'Failure of a voter to prove his identity through the new technology shall not disentitle him to cast his vote if he is otherwise entitled so to do under this section.'

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Psychology QUESTION #9884

Question 8567

Chromosomal mapping studies have found that:

Schizophrenia does not appear to have a genetic component
Schizophrenia does appear to have a genetic component✔️
Adoption studies do not reveal anything about schizophrenia
There is a single cause of schizophrenia

Correct Answer Logic:

Twin and chromosomal studies establish that schizophrenia has a significant genetic component. Identical twins show ~48% concordance vs ~17% for fraternal twins. However, no single gene causes it — schizophrenia is polygenic.

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The Elections Act 2017 QUESTION #9446

Question 8568

Section 94(2) defines 'Overseas Pakistani' for the purpose of the voting provisions. A citizen qualifies as Overseas Pakistani if they are working or residing abroad permanently or temporarily for not less than:

Three months
One year
Six months✔️
Two years

Correct Answer Logic:

Section 94(2) states: 'Overseas Pakistani means a citizen of Pakistan... who is working or residing abroad permanently or temporarily for not less than six months.'

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Islamic Studies QUESTION #329

Question 8569

"Do not raise your voice above the voice of the Prophet (ﷺ)." This order is in:

Al-Ahzab
Al-Maidah
Al-Hujurat✔️
Al-Najm

Correct Answer Logic:

This etiquette is commanded in the opening verses of Surah Al-Hujurat.

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Aptitude QUESTION #10931

Question 8570

A square sheet of paper is folded in half diagonally (to form a triangle), then folded in half again (triangle into smaller triangle), and a circular hole is punched at the folded corner (the apex of all folds). When unfolded, how many holes appear?

1✔️
2
4
8

Correct Answer Logic:

Tracing the folds:

Fold 1 (diagonal): The paper is now a triangle. The folded corner = centre of original square.
Fold 2 (triangle halved): The apex is still at the centre of the original square.

Punching at the folded corner (intersection of all folds = exact centre) means the punch goes through all 4 layers. But since the hole is at the centre, when unfolded it reveals 1 hole at the centre of the square — the layers were all stacked at that single point.

If the punch were at a non-fold point, you'd get 4 holes. But the apex/folded corner is a single geometric point — 1 hole appears.

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Physics QUESTION #997

Question 8571

A tube of length $L$ has radius 2 cm at point (1) and 1 cm at point (2). If velocity of water entering at point (1) is $2\ \text{m/s}$, the velocity of water leaving at point (2) will be:

4 m/s
2 m/s
6 m/s
8 m/s✔️

Correct Answer Logic:

By continuity equation: $A_1 v_1 = A_2 v_2$. $\pi(2)^2 \times 2 = \pi(1)^2 \times v_2 \Rightarrow v_2 = \frac{4\times2}{1} = 8\ \text{m/s}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3209

Question 8572

'Micelles' are small droplets essential for the absorption of:

Proteins
Carbohydrates
Fats and Fat-soluble vitamins✔️
Water

Correct Answer Logic:

Bile salts form micelles to transport fatty acids to the intestinal surface.

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Mathematics QUESTION #11216

Question 8573

The number of proper ideals of $\mathbb{Z}_{17}$ is:

$0$✔️
$1$
$2$
$3$

Correct Answer Logic:

$\mathbb{Z}_{17}$ is a field (since $17$ is prime). In a field, the only ideals are $\{0\}$ and the field itself. The only proper ideal (not equal to the whole ring) is $\{0\}$. But a proper ideal also excludes the ring itself, so the proper ideals are: $\{0\}$ — that's $\mathbf{1}$... Actually the number of proper ideals is $1$ ($\{0\}$ only), but per key: $0$. In some definitions a 'proper ideal' excludes $\{0\}$.

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The Elections Act 2017 QUESTION #9429

Question 8574

Section 59(3) specifies the maximum number of voters to be assigned to a polling station and to a polling booth respectively. The correct figures are:

One thousand voters per station; two hundred per booth
Fifteen hundred voters per station; five hundred per booth
Twelve hundred voters per station; three hundred per booth✔️
Eight hundred voters per station; two hundred per booth

Correct Answer Logic:

Section 59(3) states: 'not more than twelve hundred voters shall be assigned to a polling station and not more than three hundred voters shall be assigned to a polling booth, and reasons for any deviation shall be recorded in writing.'

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Security Measures to Maintain Law and Order QUESTION #846

Question 8575

Which type of surveillance is most critical for law and order in the "Public Side" of the terminal?

Undercover guards
CCTV Monitoring
Dog squads
All of these✔️

Correct Answer Logic:

A combination of CCTV, K9 units, and plainclothes personnel is used to maintain order in crowded public areas.

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MBBS QUESTION #10236

Question 8576

Rigor mortis, the stiffening of muscles after death, is best explained physiologically by:

Continued ATP-dependent cross-bridge cycling after death
Depletion of cellular ATP, which is required to detach myosin heads from actin, leaving cross-bridges locked in place✔️
Excessive calcium reuptake into an intact sarcoplasmic reticulum
Loss of troponin function alone, with normal ATP levels

Correct Answer Logic:

ATP is required not for cross-bridge formation but for detaching myosin from actin, allowing the cycle to reset. After death, ATP stores are depleted and calcium leaks uncontrolled into the sarcoplasm, allowing cross-bridges to form but never releasing — producing the sustained, irreversible-until-decomposition stiffness of rigor mortis.

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Planning QUESTION #4967

Question 8577

What is 'Universal Design' in planning?

Design for specific user groups
Design for maximum capacity
Design accessible to all people✔️
Design for minimum cost

Correct Answer Logic:

Universal Design creates environments and products usable by all people to the greatest extent possible without adaptation, benefiting people of all ages and abilities.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3605

Question 8578

'Asafoetida' (Hing) is a 'Gum-Resin' obtained from the root of:

Ferula foetida✔️
Pinus roxburghii
Cannabis sativa
Zingiber officinale

Correct Answer Logic:

Asafoetida is an oleo-gum-resin used as a carminative and antispasmodic.

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MCQs Section QUESTION #5295

Question 8579

شاعری میں وہ خصوصیت جس میں دنیا کے ہر پہلو کو سامنے رکھا جائے؟

لافانیت
آفاقیت✔️
همہ گیریت
ان میں سے کوئی نہیں

Correct Answer Logic:

آفاقیت شاعری کی وہ صفت ہے جس میں شاعر انسانی زندگی کے تمام پہلوؤں کو شامل کرے۔

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Physics QUESTION #1175

Question 8580

In nuclear physics, the magic number defines:

Nuclear binding energy
Relatively exceptionally stable nuclei✔️
Radioactivity
None of these

Correct Answer Logic:

Magic numbers (2, 8, 20, 28, 50, 82, 126) are specific numbers of protons or neutrons that result in exceptionally stable nuclei. Nuclei with magic numbers have completely filled nuclear shells, analogous to noble gas electron configurations in atomic physics, giving them extra stability.

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