Bank PO Questions


Q:

When is genetic drift a major factor in evolution?

A) When there is male competition B) When there is artificial selection
C) When there is no selective pressure D) When there is disruptiveselection
 
Answer & Explanation Answer: C) When there is no selective pressure

Explanation:

Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.

 

When is genetic drift a major factor in evolution is

* When there is low gene flow.

* When there is no selective pressure.

* When there is a bottleneck.

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Filed Under: Biology
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5 3578
Q:

At what temperature do the Fahrenheit and celcius scales give the same reading?

A) 212 degrees B) 32 degreees
C) -40 degreees D) 0 degreees
 
Answer & Explanation Answer: C) -40 degreees

Explanation:

We want the temperature when F=C.

We know that, F = C x 95 + 32

So substituting C For F, we have C = -40o

Therefore,  C = -40. 

Thus when C = -40, we have C = F

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Filed Under: Physics
Exam Prep: CAT , AIEEE
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17 3577
Q:

Race : Fatigue :: Fast : ?

A) Hunger B) Appetite
C) Weakness D) Food
 
Answer & Explanation Answer: A) Hunger

Explanation:

Race : Fatigue :: Fast : Hunger

The first word causes the second.

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Filed Under: Analogy
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6 3574
Q:

In a city of engineers of 4800, the number of female engineers are 3/8th of them. The number of female engineers is what percentage of the number of male engineers?

A) 76 B) 60
C) 56 D) 52
 
Answer & Explanation Answer: B) 60

Explanation:

Total engineers = 4800

Number of female engineers = 3/8 x 4800 = 1800

Then, number of male engineers = 4800 - 1800 = 3000

Now, required is female engineers is what percentage of the number of male engineers

=> 1800 is what % of 3000

=> p x 3000/100 = 1800

=> 30p = 1800

p = 60%

 

Hence, female engineers is 60 percentage of the number of male engineers.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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6 3574
Q:

What does 'M' stand for in Roman numerals?

A) 1 B) 50
C) 500 D) 1000
 
Answer & Explanation Answer: D) 1000

Explanation:

Letters of the alphabet used in ancient Rome to represent numbers:

I = 1;

V = 5;

X = 10;

L = 50;

C = 100;

D = 500;

M = 1000.

The numbers one through ten are written I, II, III, IV, V, VI, VII, VIII, IX, and X.

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Filed Under: General Awareness
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4 3573
Q:

In a street, there are certain number of houses. People in that street are decided to paint their houses with certain colours. If four houses are painted with each colour, then one house will be left without any colour. If five houses are painted with each colour, then one colour will remain. Find the number of houses in that street ?

A) 25 B) 6
C) 32 D) 7
 
Answer & Explanation Answer: A) 25

Explanation:

Let x be number of houses and y be colors.

on the basis of question
x = 4y+1
x = 5(y-1)
on solving these 2 equations x = 25

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Filed Under: Arithmetical Reasoning
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3 3573
Q:

A pulse can be detected most easily in

A) a vein B) a lacteal
C) an artery D) a capillary
 
Answer & Explanation Answer: C) an artery

Explanation:

A pulse can be detected most easily in Arteries as they are under much greater pressure than veins because they are carrying blood away from the heart which is the pumping machine to force blood to move to all of the body.

 

Every time the hear contracts, it can be felt in an artery where a surge of blood has just been forced.

 

A capillary is too small to feel a pulse and a lacteal is part of the lymphatic system found in the small intestine.

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Filed Under: Biology
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3 3571
Q:

Which of these provides your body with energy?

A) Carbohydrates B) Fats
C) Vitamins D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Nutrients are the substances in food that provide the raw materials and energy the body needs to carry out all its essential processes.

There are six groups of nutrients:

1. Carbohydrates.

2. Fats.

3. Proteins.

4. Vitamins.

5. Minerals.

6. Water.

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Filed Under: General Science
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8 3570