Analyst Questions


Q:

How do cancer cells differ from normal cells?

Answer

There are many differences between cancer cells and normal cells. Some of the differences are well known, whereas others have only been recently discovered and are less well understood.


cancer_cells_vs_normal_cells1531806964.jpg image


Cancer Cells vs. Normal Cells ::



Below are some of the major differences between normal cells and cancer cells, which in turn account for how malignant tumors grow and respond differently to their surroundings than benign tumors.



Growth :—


Normal cells stop growing (reproducing) when enough cells are present. For example, if cells are being produced to repair a cut in the skin, new cells are no longer produced when there are enough cells present to fill the hole; when the repair work is done. In contrast, cancer cells don’t stop growing when there are enough cells present. This continued growth often results in a tumor (a cluster of cancer cells) being formed. 



Communication :—


Cancer cells don’t interact with other cells as normal cells do. Normal cells respond to signals sent from other nearby cells that say, essentially, “you’ve reached your boundary.” When normal cells “hear” these signals they stop growing. Cancer cells do not respond to these signals.



Stickiness :—


Normal cells secrete substances that make them stick together in a group. Cancer cells fail to make these substances, and can “float away” to locations nearby, or through the bloodstream or system of lymph channels to distant regions in the body.


 


Ability to Metastasize (Spread) :—


Normal cells stay in the area of the body where they belong. For example, lung cells remain in the lungs. Cancer cells, because they lack the adhesion molecules that cause stickiness, are able to travel via the bloodstream and lymphatic system to other regions of the body—they have the ability to metastasize. 


 


Appearance :—


Under a microscope, normal cells and cancer cells may look quite different. In contrast to normal cells, cancer cells often exhibit much more variability in cell size—some are larger than normal and some are smaller than normal. In addition, cancer cells often have an abnormal shape, both of the cell, and of the nucleus (the “brain” of the cell.) 



The rate of growth :—


Normal cells reproduce themselves and then stop when enough cells are present. Cancer cells reproduce rapidly before the cells have had a chance to mature.


 


Maturation :—


Normal cells mature. Cancer cells, because they grow rapidly and divide before cells are fully mature, remain immature. Doctors use the term undifferentiated to describe immature cells (in contrast to differentiated to describe more mature cells.) 


 


Evading the immune system  :—


When normal cells become damaged, the immune system (via cells called lymphocytes) identifies and removes them. Cancer cells are able to evade (trick) the immune system long enough to grow into a tumor by either by escaping detection or by secreting chemicals that inactivate immune cells that come to the scene.


 


Functioning :—


Normal cells perform the function they are meant to perform, whereas cancer cells may not be functional. For example, normal white blood cells help fight off infections. In leukemia, the number of white blood cells may be very high, but since the cancerous white blood cells are not functioning as they should, people can be more at risk for infection even with an elevated white blood cell count.

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Subject: General Science Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

7 4441
Q:

Tehri dam is located on which of the following rivers?

A) Brahmaputra B) Godavari
C) Ganga D) Bhagirathi
 
Answer & Explanation Answer: D) Bhagirathi

Explanation:

Tehri dam is located on the river Bhagirathi.

  • It is a multi-purpose rock and earth-fill embankment dam on the Bhagirathi River near Tehri in Uttarakhand, India.

 

  • It is the primary dam of the THDC India Ltd. and the Tehri hydroelectric complex.
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Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
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21 4440
Q:

A Bus travels first half distance between two places with a speed of 40 kmph and the rest half distance with a speed of 60 kmph. The average speed of the Bus is ?

A) 48 kmph B) 50 kmph
C) 46 kmph D) 42 kmph
 
Answer & Explanation Answer: A) 48 kmph

Explanation:

we know that speed = distance traveled/time taken
let the total distance traveled by the car is 2x km.
then time taken by it to cover first half is x/60 hour.
and for second half is x/40 hour.
Then average speed= total distance travelled / total time taken.

 

i.e. 2xx60+x40

 

=> 2x5x120

 

= 48 kmph.

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Filed Under: Time and Distance
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1 4440
Q:

When two dice are thrown simultaneously, what is the probability that the sum of the two numbers that turn up is less than 12?

A) 35/36 B) 17/36
C) 15/36 D) 1/36
 
Answer & Explanation Answer: A) 35/36

Explanation:

When two dice are thrown simultaneously, the probability is n(S) = 6x6 = 36

dice_thrown_simulataneously1532668754.png image

Required, the sum of the two numbers that turn up is less than 12

That can be done as n(E)

= { (1,1), (1,2), (1,3), (1,4), (1,5), (1,6)
(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)
(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)
(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)
(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)
(6,1), (6,2), (6,3), (6,4), (6,5) }

= 35

Hence, required probability = n(E)/n(S) = 35/36.

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Filed Under: Probability
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20 4438
Q:

Parallel construction means that you

A) give both sides of the argument in your essay. B) begin each paragraph of your essay in the same way.
C) use the same grammatical construction in all similar headings throughout an outline. D) repeat the first paragraph of your essay as the last paragraph.
 
Answer & Explanation Answer: C) use the same grammatical construction in all similar headings throughout an outline.

Explanation:
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Filed Under: Alphabet Test
Exam Prep: AIEEE , Bank Exams , GRE , TOEFL
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16 4435
Q:

What starts with P and ends with E and has thousands of letters?

What_starts_with_P_and_ends_with_E_and_has_thousands_of_letters1533536653.jpg image

Answer

A POST OFFICE is the word which starts with P and ends with E and has thousands of letters which are posted.

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Subject: Logic Puzzles Exam Prep: CAT , Bank Exams , AIEEE
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12 4428
Q:

Which is faster Light or Sound?

A) Light B) Sound
C) Both are same D) Can't be determined
 
Answer & Explanation Answer: A) Light

Explanation:

Light travels Faster than Sound.

 

Light :

1. Light doesn't require a medium to travel.

2. It travels in the vaccum with the speed of 1,86,000 miles per second.

 

Sound:

1. Sound rquire a medium.

2. It travels in the Air with the speed of 340 meters per second.

3. It travels Faster in Water than in Air.

4. It travels Faster in Steel than in Water. 

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Filed Under: General Science
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9 4428
Q:

In latest generation computers, the instructions are executed

A) Sequentially only B) Parallelly only
C) Both sequentially and parallelly D) None of the above
 
Answer & Explanation Answer: C) Both sequentially and parallelly

Explanation:

In_latest_generation_computers,_the_instructions_are_executed1556257673.jpg image

 

In latest generation computers, the instructions are executed both sequencially and parallelly.

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3 4419