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Q:

Amino acids can be distinguished from one another by

A) type of bond between the R group and the rest of the molecule B) the number of R groups found on the amino acid molecules
C) the chemical properties of their R groups D) the chemical properties of the amino and carboxyl groups
 
Answer & Explanation Answer: C) the chemical properties of their R groups

Explanation:

Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.

 

Depending on the nature of the side chain groups, three classes of aminoacids can e distinguished:

1. Amino acids with H ond donor and acceptor groups.

Histidine, lysine, aspartic acid, threonine,...

2. Amino acids with donor grups only.

Arginine, tryptophan and cysteine.

3. Amino acids with acceptor groups only.

Asparagine and glutamine.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

When more than 20% of the body weight is due to fat, the person is suffering from

A) Marasmus B) Kwashiorkor
C) Scurvy D) Obesity
 
Answer & Explanation Answer: D) Obesity

Explanation:
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Filed Under: Biology

5 3510
Q:

Who gave the slogan Inquilab Zindabad?

A) Hasrat Mohani B) Ashfaqulla Khan
C) Bhagat Singh D) Chandrashekhar Azad
 
Answer & Explanation Answer: A) Hasrat Mohani

Explanation:

Inquilab Zindabad means "Long live the revolution!". The slogan Inquilab Zindabad was given by Hasrat Mohani.

 

                                        who_gave_the_slogan_inquilab_zindabad1556950189.png image

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Filed Under: Indian History
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Q:

Which tennis player has won the Grand Slam title in men's singles 2019?

A) Rafael Nadal B) Roger Federer
C) Novak DJokovic D) Daniil Medvedev
 
Answer & Explanation Answer: A) Rafael Nadal

Explanation:

Rafael Nadal defeated Daniil Medvedev in the men's singles title at the 2019 US Open. It was Nadal's 19th Grand Slam singles title, and fourth US Open title.

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Filed Under: Sports
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38 3509
Q:

When is International Talk Like a Pirate Day is observed?

A) December 11 B) September 16
C) March 8 D) September 19
 
Answer & Explanation Answer: D) September 19

Explanation:
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Filed Under: Important Days and Years

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Q:

In the context of memory management, what are placement and replacement algorithms?

Answer

Placement algorithms determine where in available real-memory to load a program. Common methods are first-fit, next-fit, best-fit. Replacement algorithms are used when memory is full, and one process (or part of a process) needs to be swapped out to accommodate a new program. The replacement algorithm determines which are the partitions to be swapped out.

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Subject: Operating Systems

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Q:

What will be output of following c code?

void main()
{
struct bitfield
{
unsigned a:5;
unsigned c:5;
unsigned b:6;

}bit;
char *p;
struct bitfield *ptr,bit1={1,3,3};
p=&bit1;
p++;
clrscr();
printf("%d",*p);
getch();
}

Answer

Output: 12

Explanation:
Binary value of a=1 is 00001 (in 5 bit)
Binary value of b=3 is 00011 (in 5 bit)
Binary value of c=3 is 000011 (in 6 bit)

In memory it is represented as:
Let address of bit1 is 500 which initialize to char pointer p. Since can is one byte data type so p++ will be 501. *p means content of memory location 501 which is (00001100) and its binary equivalent is 12. Hence output is 12.

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Subject: Programming

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Q:

Who is the First Indian to win a medal in badminton at the Olympics ?

Answer

Saina Nehwal

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Subject: Famous Personalities

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