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Biology QUESTION #7243

Two microbes found to be very useful in genetic engineering are:

Diplococcus sp. and Pseudomonas sp.
Crown gall bacterium and Caenorhabditis elegans
Escherichia coli and Agrobacterium tumefaciens✔️
Vibrio cholerae and a tailed bacteriophage

Correct Answer Logic:

E. coli is the workhorse of genetic engineering — used for cloning, protein expression, and plasmid propagation. Agrobacterium tumefaciens is used to introduce foreign genes into plant cells via its Ti plasmid. Together they are the most commonly used microbes in genetic engineering.

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Nursing QUESTION #9239

Question 2

A Charge Nurse is managing a patient with status asthmaticus who is deteriorating despite bronchodilators. SpO$_2$ is $85\%$ on high-flow oxygen. The patient is becoming drowsy. What is the MOST appropriate next step?

Increase ipratropium nebulization frequency to every 15 minutes
Administer IV magnesium sulfate 2g over 20 minutes
Prepare for emergency intubation and contact intensivist immediately✔️
Position the patient supine and increase oxygen flow rate

Correct Answer Logic:

Correct Answer: C — Prepare for emergency intubation

Indicators of impending respiratory failure in status asthmaticus (Intubation threshold):

Declining GCS / drowsiness / confusion
Exhaustion — patient too tired to breathe
SpO$_2 < 90\%$ despite high-flow O$_2$
Silent chest on auscultation (no wheeze = no airflow)
PaCO$_2$ rising (normal or elevated CO$_2$ in asthma = danger sign — patient normally hyperventilates, so rising CO$_2$ means fatigue)
Pulsus paradoxus $> 25 \text{ mmHg}$

Progressive management of status asthmaticus:

Short-acting $\beta_2$ agonists (Salbutamol) — continuous nebulization
IV/oral corticosteroids (Hydrocortisone/Methylprednisolone)
Ipratropium bromide
IV Magnesium Sulfate $2 \text{ g}$ over 20 min
IV Aminophylline
Intubation (last resort — high risk, use RSI)

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General Knowledge QUESTION #8841

Question 3

Sir Creek denotes:

A mountain top in Northern Pakistan
An iceberg of Siachen
An island in the Indian Ocean
None of these (a creek/estuary)✔️

Correct Answer Logic:

Sir Creek is a tidal estuary on the Pakistan-India border.

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CISA QUESTION #6851

Question 4

An auditor reviews a data classification policy that defines four levels: Public, Internal, Confidential, and Restricted. However, testing reveals that 90% of data is classified as 'Internal' with no further differentiation. What is the PRIMARY control weakness?

Poorly designed classification scheme
Classification system is not providing meaningful data protection guidance✔️
Need for more classification levels
User training deficiency

Correct Answer Logic:

Over-classification or under-differentiation defeats the purpose of data classification. When most data falls into one broad category, the classification provides no useful guidance for protection requirements, access controls, or handling procedures. Effective classification must meaningfully differentiate data requiring different protection levels.

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Maths QUESTION #2893

Question 5

Complete the pattern: $1, 8, 27, 64, \dots$

100
125✔️
81
150

Correct Answer Logic:

The series represents cubes: $1^3, 2^3, 3^3, 4^3$. Next is $5^3 = 125$.

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Quantitative Reasoning QUESTION #8019

Question 6

Choose the word that is most nearly opposite in meaning to ENERVATE

recuperate
resurrect
renovate
strengthen✔️

Correct Answer Logic:

ENERVATE means to weaken or drain of energy. The opposite is to make strong or give energy. Strengthen is correct: enervate means to weaken, while strengthen means to make strong—direct opposites.

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Security Measures to Maintain Law and Order QUESTION #923

Question 7

What is the best method for verifying the identity of someone at a secure gate?

Checking their clothing
Verifying government-issued ID✔️
Asking for their name
Relying on facial recognition alone

Correct Answer Logic:

Official identification remains the standard for ensuring only authorized personnel enter sensitive areas.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3388

Question 8

The 'Biuret Test' gives a positive (purple/violet) result for:

Monosaccharides
Proteins/Peptides✔️
Triglycerides
Starch

Correct Answer Logic:

The test detects the presence of peptide bonds.

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MBBS QUESTION #10259

Question 9

Renal plasma flow can be estimated using the clearance of para-aminohippuric acid (PAH), which is considered nearly completely removed from plasma in a single pass through the kidney because PAH is:

Freely filtered at the glomerulus and additionally actively secreted by the proximal tubule, so essentially all of it is cleared from renal plasma in one pass✔️
Neither filtered nor secreted by the nephron
Completely reabsorbed by the distal tubule
Only filtered, with no tubular secretion at all

Correct Answer Logic:

Because PAH is both filtered and vigorously secreted by proximal tubular cells, nearly 90% of the PAH delivered to the kidney is cleared in a single pass, allowing its clearance to approximate effective renal plasma flow — distinct from inulin, which measures GFR only.

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Physics QUESTION #7061

Question 10

An ideal gas occupies $2 \text{ m}^3$ at a pressure of $3 \times 10^6 \text{ Pa}$. Determine the internal energy of the gas.

$9 \times 10^6 \text{ J}$✔️
$6 \times 10^4 \text{ J}$
$10^8 \text{ J}$
$3 \times 10^2 \text{ J}$

Correct Answer Logic:

Assuming the gas is monoatomic (as is standard in such problems unless specified otherwise), the internal energy $U$ is given by:

$U = \frac{3}{2} nRT = \frac{3}{2} PV$

$U = \frac{3}{2} \times (3 \times 10^6 \text{ Pa}) \times (2 \text{ m}^3)$

$U = 3 \times 3 \times 10^6 = 9 \times 10^6 \text{ J}$.

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Math Physics Chemistry Biology QUESTION #11425

Question 11

What are the products of light-dependent reactions of photosynthesis?

$ATP$, $RuBP$ and reduced $NAD$
$O_2$, reduced $NADP$ and $ATP$✔️
$O_2$, oxygen and not reduced $NAD$
Reduced $NADP$ and $RuBP$

Correct Answer Logic:

The products of the light-dependent reactions (occurring in thylakoid membranes) are: $ATP$ (via photophosphorylation), NADPH (reduced $NADP^+$, via NADP reductase), and $O_2$ (released from water splitting/photolysis). These products power the Calvin cycle in the stroma.

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Psychology QUESTION #1472

Question 12

Which model of stress focuses on how an individual appraises a situation as stressful based on their perceived ability to cope?

The Transactional Model of Stress✔️
The General Adaptation Syndrome (GAS)
The Social Readjustment Rating Scale (SRRS)
The Cognitive-Behavioral Model

Correct Answer Logic:

The Transactional Model of Stress (Lazarus and Folkman, 1984) proposes that stress arises from the transaction between the person and the environment. Stress depends on: (1) primary appraisal — is this situation threatening or challenging? and (2) secondary appraisal — do I have the resources to cope? If demands exceed perceived coping resources, stress results. GAS (Selye) focuses on physiological response stages; SRRS ranks life events by stress level.

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English QUESTION #2776

Question 13

Which ONE WORD means: 'The study of ancient cultures by digging up remains'?

Geology
Astrology
Archaeology✔️
Anthropology

Correct Answer Logic:

'Archaeology' is the study of human history and prehistoric cultures through excavation and analysis of artifacts and remains. Geology studies Earth's physical structure; Astrology studies celestial bodies' supposed influence on humans; Anthropology studies human societies.

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Electrical Engineering QUESTION #2151

Question 14

The Skin Effect in a conductor is more prominent at:

DC (Zero frequency)
Low frequencies
High frequencies✔️
All frequencies equally

Correct Answer Logic:

Skin effect, where current density is highest near the surface, increases as the frequency $f$ increases due to the decrease in skin depth $\delta = \sqrt{\frac{2}{\omega\mu\sigma}}$.

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Accounting & Finance QUESTION #1192

Question 15

In financial accounting, goodwill is classified as:

Tangible asset
Intangible asset✔️
Current liability
Contra asset

Correct Answer Logic:

Goodwill is an intangible asset — it represents non-physical value such as brand reputation, customer relationships, and business synergies. It appears on the balance sheet under non-current intangible assets and arises when a business is purchased for more than the fair value of its net identifiable assets.

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Islamic Studies QUESTION #224

Question 16

The Abbasids contributed significantly to which cultural field?

Astronomy
Poetry and literature
Mathematics
All of these✔️

Correct Answer Logic:

The Abbasid era is known as the Islamic Golden Age for its vast advancements.

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Math Physics Chemistry Biology QUESTION #577

Question 17

Which of the following damages wooden ships?

Sepia
Limax
Teredo✔️
Ostrea

Correct Answer Logic:

Teredo (shipworm) damages wooden ships

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General Knowledge QUESTION #4640

Question 18

Clorida is taller than Ivory. Emily is taller than Lovely. Lovely is taller than Enamol. To determine who among them is the tallest, which of the following further information, if any, is required?

Clorida is taller than Enamol and Lovely✔️
No further information is needed
Emily is taller Ivory
Clorida is taller than Lovely

Correct Answer Logic:

4

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Accounting & Finance QUESTION #6213

Question 19

When evaluating 'True and Fair View' in financial statements, the auditor's judgment is $J$. If $J$ is influenced by a personal interest in the entity, which ethical principle is violated?

Professional Competence
Confidentiality
Technical Standards
Objectivity✔️

Correct Answer Logic:

Objectivity requires that the auditor's opinion is based on evidence alone and is not subjective or influenced by personal interests.

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Economics QUESTION #1679

Question 20

For a person who has never consumed cigarettes, the price elasticity of demand for cigarettes would best be described as:

Unitary price elastic
Relatively price inelastic
Perfectly price elastic
Perfectly price inelastic✔️

Correct Answer Logic:

A non-smoker assigns zero value to cigarettes — no quantity would be demanded regardless of the price. Perfectly price inelastic demand ($P_e = 0$) means the quantity demanded does not change at all with price changes, represented by a vertical demand curve. This contrasts with a heavy smoker, whose demand would be relatively inelastic (but not perfectly so), and a casual smoker whose demand may be more responsive.

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