Reading Mode - Questions

Biology Zoology Botany QUESTION #1365

A cross between an individual with an unknown genotype and a homozygous recessive individual is called a:

Back cross
Test cross✔️
Monohybrid cross
Dihybrid cross

Correct Answer Logic:

A test cross involves crossing an organism with an unknown genotype (possibly homozygous dominant or heterozygous) with a homozygous recessive individual (e.g., aa). The phenotypic ratio of offspring reveals the unknown genotype. If all offspring show the dominant phenotype, the unknown parent is homozygous dominant; if a 1:1 ratio appears, it is heterozygous.

Uploaded by: Fani Warraich

Mathematics QUESTION #6006

Question 4542

Given $(2 + \sin x)\dfrac{dy}{dx} + (y+1)\cos x = 0$ with $y(0) = 1$, find the value of $y\!\left(\dfrac{\pi}{2}\right)$.

$\dfrac{1}{3}$✔️
$-\dfrac{2}{3}$
$-\dfrac{1}{3}$
$\dfrac{4}{3}$

Correct Answer Logic:

Separate variables: $\frac{dy}{y+1} = -\frac{\cos x}{2+\sin x}dx$

Integrate: $\ln|y+1| = -\ln|2+\sin x| + C$

So $(y+1)(2+\sin x) = K$

At $x=0, y=1$: $(1+1)(2+0) = K \Rightarrow K = 4$

Thus $y+1 = \frac{4}{2+\sin x}$, so $y = \frac{4}{2+\sin x} - 1$

At $x = \frac{\pi}{2}$: $y = \frac{4}{2+1} - 1 = \frac{4}{3} - 1 = \mathbf{\frac{1}{3}}$

Uploaded by: Fani Warraich

CISA QUESTION #1791

Question 4543

Which type of audit risk is represented by a failure to detect or prevent a material error from occurring?

Overall audit risk
Detection risk✔️
Inherent risk
Control risk

Correct Answer Logic:

Detection risk is the risk that the auditor fails to identify a material error that exists. It arises from limitations in the audit procedures used rather than from the nature of the subject matter. Proper sampling methods and thorough testing procedures are employed specifically to minimize detection risk.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3234

Question 4544

'Leukocytosis' is an indicator of:

Anemia
Infection or inflammation✔️
Dehydration
High sugar

Correct Answer Logic:

An increase in the total white blood cell count is a common response to infection.

Uploaded by: Fani Warraich

Chemistry QUESTION #4379

Question 4545

Number of unpaired electrons present in the ground state of $Fe^{3+}$ are (Atomic number of $Fe = 26$):

Three
Four
Five✔️
Six

Correct Answer Logic:

Ground state of $Fe$: $[Ar]\ 3d^6\ 4s^2$. $Fe^{3+}$ loses 3 electrons (first from $4s$, then from $3d$): $[Ar]\ 3d^5$. In $3d^5$, all five $3d$ orbitals have one electron each (Hund's rule), giving $\mathbf{5}$ unpaired electrons.

Uploaded by: Fani Warraich

Math Physics Chemistry Biology QUESTION #527

Question 4546

Name the enveloped RNA virus that causes infusion hepatitis.

HBV
HAV
HCV✔️
None of these

Correct Answer Logic:

HCV is enveloped RNA virus causing hepatitis

Uploaded by: Fani Warraich

Verbal Reasoning QUESTION #8154

Question 4547

Runner A completed a distance of $\dfrac{4}{5}$ kilometer, while Runner B ran 800 meters. Compare the distances covered by each runner.

Quantity A: The distance Runner A ran

Quantity B: The distance Runner B ran

Quantity A is greater
Quantity B is greater
The two quantities are equal✔️
The relationship cannot be determined from the information given

Correct Answer Logic:

Convert both distances to the same unit.

Runner A ran $\dfrac{4}{5}$ km $= 0.8$ km $= 800$ meters.

Runner B ran $800$ meters.

Both runners covered exactly the same distance: 800 meters.

Therefore the two quantities are equal.

Uploaded by: Fani Warraich

Chemistry QUESTION #7820

Question 4548

Mass of 1 mole of calcium carbonate (CaCO₃) is:

50 g
75 g
100 g✔️
125 g

Correct Answer Logic:

Ca=40, C=12, O=16×3=48 → total 100 g/mol.

Uploaded by: Fani Warraich

The Elections Act 2017 QUESTION #9445

Question 4549

Under Section 93(4), a voter who casts a postal ballot must post the ballot paper to the Returning Officer so as to reach him before the:

Day following the polling day
Seventh day after dispatch
Polling day✔️
Twenty-fourth hour after the close of poll

Correct Answer Logic:

Section 93(4) [as amended 2023] states the postal ballot must reach the Returning Officer 'before the polling day' — this was substituted from an earlier deadline.

Uploaded by: Fani Warraich

Math (Module-1) QUESTION #5380

Question 4550

A linear function $f$ is represented in the accompanying graph, where $y = f(x)$. What is the $y$-intercept of this function's graph?

$(0, 0)$
$(0, -\frac{16}{11})$
$(0, -8)$
$(0, 8)$✔️

Correct Answer Logic:

The $y$-intercept is the point where the line crosses the vertical $y$-axis. Observing the graph, the line crosses at $y = 8$.

Uploaded by: Fani Warraich

General Knowledge QUESTION #8725

Question 4551

'Hyde Park' in London is most famous for:

Beautiful rare tulips
Unique fountains
Residence of the Lord Chancellor
None of the above (speakers' corner)✔️

Correct Answer Logic:

Hyde Park is famous for its Speakers' Corner and open-air discussions.

Uploaded by: Fani Warraich

Egnlish QUESTION #709

Question 4552

What is the central philosophy of Emerson's "The Over-Soul"?

Rationalism
Unity of all things✔️
Individualism
Materialism

Correct Answer Logic:

Emerson posits a "supreme reality" or "common soul" within which every man's particular being is contained.

Uploaded by: Fani Warraich

Education QUESTION #6761

Question 4553

A subject specialist developing a physics test wants to ensure that the test measures "understanding of Newton's Laws" and not merely the ability to memorize formulae. Which type of validity evidence should be most rigorously gathered, and what procedure is most appropriate?

Content validity; compare test items with the textbook chapter headings
Construct validity; define the construct, identify sub-constructs, list indicators, write items for each indicator, and seek expert judgment and factor analysis✔️
Criterion validity; correlate test scores with past exam results
Consequence validity; survey students about whether the test was fair

Correct Answer Logic:

Construct validity is the evidence that a test measures the intended theoretical construct. For a nuanced construct like "understanding" (as opposed to memorization), one must: define the construct, identify its sub-constructs (e.g., conceptual understanding vs. procedural), write items targeting each, and validate through expert judgment and factor analysis. This is the rigorous process described in construct validity.

Uploaded by: Fani Warraich

Geography QUESTION #6321

Question 4554

Which characteristic best distinguishes subsistence agriculture from commercial agriculture?

Farm size and mechanization level
Primary purpose of production (household consumption vs. market sale)✔️
Crop diversity and rotation practices
Use of chemical inputs vs. organic methods

Correct Answer Logic:

The fundamental distinction is purpose: subsistence farming primarily produces for household consumption with minimal surplus, while commercial farming produces for market sale and profit. This drives all other differences in scale, intensity, mechanization, and specialization.

Uploaded by: Fani Warraich

Urdu QUESTION #5139

Question 4555

فردوسِ بریں کس ادیب کا مشہور تاریخی ناول ہے؟

صادق الخیری
ضیا شنکر نسیم
نذیر احمد
عبدالحلیم شرر✔️

Correct Answer Logic:

فردوسِ بریں عبدالحلیم شرر کا مشہور تاریخی ناول ہے جو فرقہ باطنیہ کے موضوع پر لکھا گیا۔

Uploaded by: Fani Warraich

Pakistan Affairs QUESTION #9096

Question 4556

From which country did Pakistan purchase the Gwadar port?

Kuwait
Iran
Oman✔️
None of these

Correct Answer Logic:

Pakistan purchased Gwadar from Oman in 1958.

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #4061

Question 4557

If the 'Check Valve' sticks open, the operator will notice:

Water level rising very fast
Water level dropping and steam flowing back into the feed line✔️
The fuel tank emptying
The pressure gauge stopping

Correct Answer Logic:

This is a serious condition as the boiler could lose water back to the pump.

Uploaded by: Fani Warraich

Contracts QUESTION #5862

Question 4558

A Seller delivers goods that are slightly scratched. The Buyer wants to reject them. Can the Seller do anything?

No, the Buyer has the absolute right to reject.
Yes, the Seller has a 'Right to Cure' if the time for performance hasn't expired.✔️
Yes, but only if the scratch is less than 1 inch.
No, the Seller must accept a lower price.

Correct Answer Logic:

Under UCC §2-508, the seller has a right to cure the tender within the contract time if they seasonably notify the buyer.

Uploaded by: Fani Warraich

Urdu QUESTION #5288

Question 4559

پاکستان میں اردو کو قومی زبان کب قرار دیا گیا؟

1953
1954
1955
1956✔️

Correct Answer Logic:

پاکستان میں اردو کو 1956ء کے آئین کے ذریعے قومی زبان کا درجہ دیا گیا۔

Uploaded by: Fani Warraich

Economics QUESTION #1711

Question 4560

Pakistan's primary energy mix has historically been characterised by a structural dependence on which energy source, making the country highly vulnerable to global commodity price shocks and foreign exchange pressures?

Domestically generated renewable energy (solar, wind, hydro)
Imported fossil fuels — particularly furnace oil and liquefied natural gas (LNG)✔️
Nuclear energy as the baseload generation source
None of these

Correct Answer Logic:

Pakistan's electricity generation has been heavily reliant on imported furnace oil (for thermal power plants) and, more recently, imported LNG. This dependence on imported fossil fuels creates a double vulnerability: (1) exposure to volatile global oil and gas prices, and (2) severe foreign exchange drain contributing to balance of payments pressure. The circular debt crisis in the power sector is partly rooted in this structural dependency on expensive imported fuels.

Uploaded by: Fani Warraich

More Options

Suggest a Question