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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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Home Economics QUESTION #6238

Question 1282

A 'selvage' in textile science refers to:

The decorative embroidery
The finished edge of a fabric✔️
A type of synthetic dye
The width of the loom

Correct Answer Logic:

The selvage prevents the fabric from unraveling during the manufacturing process.

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Accounting & Finance QUESTION #6221

Question 1283

The 'Expectation Gap' often arises because the public confuses auditing with accounting. Which statement best distinguishes the two?

Auditing is done by directors; Accounting is done by Chartered Accountants
Accounting is the process of recording data; Auditing is the independent examination of that data✔️
Accounting provides an opinion; Auditing provides the facts
There is no distinction; they are the same activity

Correct Answer Logic:

Accounting is the systematic recording and reporting of financial info, while auditing is the concern with whether that info reflects a true and fair view.

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MCQs Section QUESTION #4887

Question 1284

Which word is opposite to "VULGAR"

Coarse
Gross
Exquisite✔️
Obscene

Correct Answer Logic:

Vulgar means lacking sophistication or good taste. Its antonym is Exquisite, meaning extremely beautiful and refined.

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Maths QUESTION #4504

Question 1285

What is $0 \div 5$?

$0$✔️
$5$
Undefined
$\infty$

Correct Answer Logic:

Zero divided by any non-zero number equals zero. $\frac{0}{5} = 0$

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Mathematics QUESTION #6045

Question 1286

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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Education QUESTION #10888

Question 1287

Panel dialogue is a type of which teaching method?

Discovery method
Discussion method✔️
Lecture method
Demonstration method

Correct Answer Logic:

Panel dialogue is a variation of the discussion method in which a small group of participants (panel) discuss a topic before the class, who then join the discussion. It is an interactive, collaborative technique that exposes students to multiple perspectives on an issue. Like all discussion methods, it promotes critical thinking, communication skills, and deeper understanding. Other discussion forms include seminars, debates, symposia, and buzz groups.

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Civil Engineering QUESTION #6620

Question 1288

For a 'Built-up' steel member, the individual components must be connected at intervals such that the slenderness ratio of any individual component does not exceed the:

Slenderness ratio of the whole member✔️
Limit of 200 for tension members
Limit of 40 for compression members
Yield stress of the material

Correct Answer Logic:

To ensure the built-up member acts as a single unit, the slenderness of individual components between connectors ($l/r_i$) must be less than or equal to the overall slenderness ($KL/r$) of the member.

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CISA QUESTION #6832

Question 1289

An organization's incident response plan assigns the CIO as the sole decision-maker during security incidents. The CIO is frequently traveling internationally across multiple time zones. What is the PRIMARY weakness?

Single point of failure in incident response leadership✔️
Need for deputy or alternate decision-makers to ensure timely incident response
Excessive authority concentration
Insufficient escalation procedures

Correct Answer Logic:

Having a single decision-maker who is frequently unavailable creates a critical single point of failure. Security incidents require rapid response—delays waiting for one person can allow incidents to escalate. The organization needs designated alternates with equivalent authority to ensure continuous incident response capability.

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Physics QUESTION #7852

Question 1290

λ in radioactivity is a constant:

Decay✔️
Dielectric
Planck's
Proportionality

Correct Answer Logic:

λ = decay constant.

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Accounting & Finance QUESTION #9662

Question 1291

In which system of branch accounting are the accounts Branch Stock Account, Branch Debtors Account, Branch Adjustment Account, and Branch Stock Reserve Account all simultaneously maintained?

Debtor System
Income Statement System
Stock and Debtors System✔️
Independent Branch System

Correct Answer Logic:

The Stock and Debtors System uses all six accounts: Branch Stock Account, Branch Debtors Account, Branch Expenses Account, Branch Adjustment Account, Goods Sent to Branch Account, and Branch Stock Reserve Account. This system is used when goods are sent at pro-forma invoice price and the branch is large.

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General Knowledge QUESTION #8594

Question 1292

Where is the island country of Cuba located?

Indian Ocean
Atlantic Ocean✔️
Pacific Ocean
Arctic Ocean

Correct Answer Logic:

Cuba is located in the Caribbean Sea, part of the Atlantic Ocean.

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Psychology QUESTION #9872

Question 1293

Maturation refers to development that occurs primarily as a result of:

Genetically determined signals✔️
Instinctive processes
Homeostatic imbalances
An interaction between biology and environment

Correct Answer Logic:

Maturation is development that unfolds according to a biological timetable governed by genetically programmed signals, relatively independent of specific environmental experience. Motor milestones (sitting, walking) occur in a fixed sequence across cultures.

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MBBS QUESTION #10357

Question 1294

A patient with familial hypercholesterolemia develops markedly elevated LDL cholesterol and premature atherosclerosis due to a genetic defect involving:

The LDL receptor, impairing hepatic and peripheral cellular uptake and clearance of circulating LDL particles✔️
Lipoprotein lipase exclusively
HDL synthesis exclusively
Chylomicron assembly exclusively

Correct Answer Logic:

Mutations in the LDL receptor gene (or, less commonly, in apolipoprotein B or PCSK9) impair receptor-mediated hepatic clearance of LDL particles from plasma, causing markedly elevated LDL cholesterol from birth and a substantially increased risk of premature coronary artery disease, especially in homozygous individuals.

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Chemistry QUESTION #4340

Question 1295

In a unit cell of a crystal lattice, the angle $\beta$ is between faces:

a and b
b and c
c and a✔️
Not specified

Correct Answer Logic:

In crystallographic notation, the angle $\beta$ is defined as the angle between the $a$ and $c$ axes (i.e., between faces $c$ and $a$).

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Professional QUESTION #1838

Question 1296

Section 12(3) provides the right to show cause before dismissal. However, the proviso lists two exceptions where this right does NOT apply. Which of the following is one of those exceptions?

Where the civil servant has been absent without leave for more than thirty days
Where the civil servant is dismissed on the ground of conduct leading to conviction on a criminal charge✔️
Where the civil servant holds an ad hoc appointment
Where the civil servant is on extended probation

Correct Answer Logic:

Section 12(3) provides two exceptions to the right to show cause: (i) where the civil servant is dismissed on grounds of conduct leading to conviction on a criminal charge; and (ii) where the President or an authorized person is satisfied, for recorded reasons, that in the interest of the security of Pakistan it is not expedient to give such opportunity. Criminal conviction and national security are the two exceptions.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3147

Question 1297

The 'Retina' contains photoreceptor cells known as:

Iris and Pupil
Rods and Cones✔️
Lens and Cornea
Sclera and Choroid

Correct Answer Logic:

Rods detect light/dark; Cones detect color.

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General Knowledge QUESTION #11452

Question 1298

The measurement and analysis of unique biological characteristics (such as fingerprints or iris scans) for security authentication is called:

Biometrics✔️
Bio measurement
Computer security
Smart weapon machinery

Correct Answer Logic:

Biometrics refers to automated recognition of individuals based on unique biological and behavioural characteristics — fingerprints, iris/retinal patterns, facial geometry, voice, and gait. It is used for security access in smartphones, airports, banking, and government systems.

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The Constitution of Pakistan QUESTION #9352

Question 1299

The Council of Common Interests established under Article 153 is responsible for formulating and regulating policies in relation to matters in which part of the Fourth Schedule?

Part I (Federal Legislative List)
Part II (now abolished Concurrent List)
Certain specific entries of the Federal Legislative List as listed in Article 154✔️
The entire Fourth Schedule

Correct Answer Logic:

Article 154(1) charges the Council of Common Interests with formulating and regulating policies in relation to matters in Part II of the Federal Legislative List and exercising supervision and control over related institutions. Post-18th Amendment, the Concurrent List was abolished and relevant matters were distributed.

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English QUESTION #8356

Question 1300

Apparel means:

appearance
clothes✔️
Impression
luggage

Correct Answer Logic:

Apparel means clothing.

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