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Objective Questions

Latest BET Agricultural Biotechnology Exam Question (Objective Questions), MCQ in English

Subjects : Aptitude & General Biotechnology, Agricultural Biotechnology

Question Bank BET Agricultural Biotechnology Exam - English
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Aptitude & General Biotechnology

Question 1Single Answer
In ruby laser, the stimulated emission is due to transition from
  1. A
    metastable state to any lower state
  2. B
    any higher state of lower state
  3. C
    metastable state to ground state
  4. D
    any higher state to ground state
Question 2Single Answer
A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is
  1. A
    uniform throughout the pipe not zero
  2. B
    zero only along the axis of the pipe
  3. C
    zero at any point inside the pipe
  4. D
    maximum at the centre and minimum at the edge
Question 3Single Answer
10-6 M NaOH is diluted 100 times. The pH of the diluted base is
  1. A
    between 7 and 8
  2. B
    between 5 and 6
  3. C
    between 6 and 7
  4. D
    between 10 and 11
Question 4Single Answer
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is
  1. A
    1.93 A         
  2. B
    9.65 A
  3. C
    19.3 A        
  4. D
    0.965 A
Question 5Single Answer
The respiratory quotient during cellular respiration would depend on
  1. A
    the nature of enzymes involved
  2. B
    the nature of the substrate
  3. C
    the amount of carbon dioxide released
  4. D
    the amount of oxygen utilised
Question 6Single Answer
Which of the following is not a green - house gas ?
  1. A
    Water vapour
  2. B
    Carbon monoxide
  3. C
    Methane
  4. D
    Oxygen
Question 7Single Answer
How many such pairs of letters are there in the word ‘CLEANLINESS’ each of the which has as many letters between them in the word as they have in the English alphabet, in the same sequence?
  1. A
    Two
  2. B
    Three
  3. C
    Five
  4. D
    Four
  5. E
    None of these
Question 8Single Answer
Team A has scored more goals than Team B
Team C has scored fewer goals than Team B
Team A has scored fewer goals than Team C .
If the first two statements are true, the third statement is
  1. A
    True
  2. B
    False
  3. C
    Uncertain
  4. D
    None
Question 9Single Answer
If it is possible to make only one meaningful word with the second, the third, the sixth and the eight letters of the word FRAGMENT using each only once, which of the following will be the third letter of that word ? If no such word can be formed, give ‘X’ as the answer and if more than one such word can be formed, give ‘Y’ as the answer.
  1. A
    A
  2. B
    E
  3. C
    T
  4. D
    X
  5. E
    Y
Question 10Single Answer
Passage :
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .
Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet ?
  1. A
    X
  2. B
    W
  3. C
    I
  4. D
    H
Question 11Single Answer
Passage :
Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)
If the third alphabet of each of the words is changed to the next alphabet in the English alphabetical series, which of the following will form a meaningful English word?
  1. A
    SUM
  2. B
    BIG
  3. C
    Both BIG and THE
  4. D
    FOR
  5. E
    Both FOR and BIG
Question 12Single Answer
Passage :
Direction : The following question is based on the five words given below:
AND FOR THE BIG SUM (The new words formed after performing the mentioned operations may or may not necessarily the meaningful English words.)
If the given words are arranged in the order as they would appear in a dictionary from left to right, which of the following will be second from the right ?
  1. A
    AND
  2. B
    FOR
  3. C
    THE
  4. D
    BIG
  5. E
    SUM
Question 13Single Answer
The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?
  1. A
    51:52
  2. B
    52:53
  3. C
    51:53
  4. D
    52:55
Question 14Single Answer
Which of the following numbers is irrational ?
  1. A
    √49
  2. B
    0.125
  3. C
    √2
  4. D
    22/7
Question 15Single Answer
356 x 936 – 356 x 836 = ?
  1. A
    35600  
  2. B
    34500
  3. C
    9630
  4. D
    93600
Question 16Single Answer
Arrange in descending order: 5/8, 7/10, 3/4
  1. A
    3/4 > 7/10 > 5/8
  2. B
    7/10 > 3/4 > 5/8
  3. C
    3/4 > 5/8 > 7/10
  4. D
    5/8 > 7/10 > 3/4
Question 17Single Answer
What is (3^{4} times 9^{2}) ?
  1. A
    36
  2. B
    38
  3. C
    310
  4. D
    96
     
Question 18Single Answer
If 34X-2 = 729, then find the value of X.
  1. A
    4     
  2. B
    3
  3. C
    2 
  4. D
    5
Question 19Single Answer
Convert 0.6 into fraction ?
  1. A
    3/5
  2. B
    2/3
  3. C
    4/5
Question 20Single Answer
The no. plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate numbers were reversed. The bus company had only five hundred buses numbered from 1 to 500. What was the number ?
  1. A
    169  
  2. B
    36
  3. C
    196 
  4. D
    Can not say
Question 21Single Answer
If a and b are positive integers, such that ab = 125, then (a-b)a+b-4 = ?
  1. A
    16   
  2. B
    25
  3. C
    28  
  4. D
    30
Question 22Single Answer
If x*y = x2 + y2 – xy, then value of 9*11 is
  1. A
    93     
  2. B
    103
  3. C
    60.5
  4. D
    121
Question 23Single Answer
Which is greater ?
  1. A
    15/16
  2. B
    17/18
  3. C
    Equal
  4. D
    Cannot compare
Question 24Single Answer
If sum of two numbers is 42 and their product is 437, then find their difference.
  1. A
    3 
  2. B
    4
  3. C
    5    
  4. D
    7
Question 25Single Answer
Write the 44000 in Roman numerals
  1. A
    XLI 
  2. B
    XLVI
  3. C
    XLIV 
  4. D
    XLVIC
Question 26Single Answer
What is the central dogma of molecular biology?
  1. A
    Protein → RNA → DNA
  2. B
    DNA → RNA → Protein
  3. C
    RNA → DNA → Protein
  4. D
    Protein → DNA → RNA
Question 27Single Answer
What type of bond connects amino acids in a protein?
  1. A
    Glycosidic bond
  2. B
    Peptide bond
  3. C
    Phosphodiester bond
  4. D
    Ester bond
Question 28Single Answer
Which type of bond links nucleotides in a nucleic acid?
  1. A
    Peptide bond
  2. B
    Glycosidic bond
  3. C
    Phosphodiester bond
  4. D
    Hydrogen bond
Question 29Single Answer
What type of bond connects monosaccharides in a carbohydrate?
  1. A
    Peptide bond
  2. B
    Glycosidic bond
  3. C
    Phosphodiester bond
  4. D
    Ester bond
Question 30Single Answer
What type of bond connects fatty acids to glycerol in a lipid?
  1. A
    Peptide bond
  2. B
    Glycosidic bond
  3. C
    Phosphodiester bond
  4. D
    Ester bond
Question 31Single Answer
Which force is a weak, short-range attraction between fluctuating dipoles?
  1. A
    Hydrogen bonding
  2. B
    Electrostatic interaction
  3. C
    Van der Waals interaction
  4. D
    Hydrophobic effect
Question 32Single Answer
Which force involves the attraction between oppositely charged ions?
  1. A
    Hydrogen bonding
  2. B
    Electrostatic interaction
  3. C
    Van der Waals interaction
  4. D
    Hydrophobic effect
Question 33Single Answer
Which force is a weak dipole-dipole interaction where hydrogen is involved?
  1. A
    Electrostatic interaction
  2. B
    Van der Waals interaction
  3. C
    Hydrogen bonding
  4. D
    Hydrophobic effect
Question 34Single Answer
Which effect drives nonpolar molecules to aggregate in an aqueous environment?
  1. A
    Electrostatic interaction
  2. B
    Van der Waals interaction
  3. C
    Hydrogen bonding
  4. D
    Hydrophobic effect
Question 35Single Answer
What is a common secondary structure in proteins that resembles a coiled spring?
  1. A
    Beta-sheet
  2. B
    Alpha-helix
  3. C
    Beta-turn
  4. D
    Random coil
Question 36Single Answer
What is a common secondary structure in proteins that resembles a pleated sheet?
  1. A
    Alpha-helix
  2. B
    Beta-sheet
  3. C
    Beta-turn
  4. D
    Random coil
Question 37Single Answer
What is a short, U-shaped secondary structure in proteins?
  1. A
    Alpha-helix
  2. B
    Beta-sheet
  3. C
    Beta-turn
  4. D
    Random coil
Question 38Single Answer
What plot shows the distribution of phi and psi angles in a protein structure?
  1. A
    Lineweaver-Burk plot
  2. B
    Ramachandran plot
  3. C
    Scatchard plot
  4. D
    Hill plot
Question 39Single Answer
What are distinct functional and structural units in a protein?
  1. A
    Domains
  2. B
    Motifs
  3. C
    Residues
  4. D
    Subunits
Question 40Single Answer
What is the arrangement of multiple protein subunits in a complex?
  1. A
    Primary structure
  2. B
    Secondary structure
  3. C
    Tertiary structure
  4. D
    Quaternary structure
Question 41Single Answer
Which DNA conformation is a left-handed double helix?
  1. A
    A-DNA
  2. B
    B-DNA
  3. C
    Z-DNA
  4. D
    C-DNA
Question 42Single Answer
Which DNA conformation is the most common form found in cells?
  1. A
    A-DNA
  2. B
    B-DNA
  3. C
    Z-DNA
  4. D
    C-DNA
Question 43Single Answer
Which DNA conformation is a dehydrated form of DNA?
  1. A
    A-DNA
  2. B
    B-DNA
  3. C
    Z-DNA
  4. D
    C-DNA
Question 44Single Answer
What are catalytic RNA molecules called?
  1. A
    Ribosomes
  2. B
    Ribozymes
  3. C
    Riboswitches
  4. D
    Spliceosomes
Question 45Single Answer
What are regulatory RNA sequences that bind to metabolites?
  1. A
    Ribosomes
  2. B
    Ribozymes
  3. C
    Riboswitches
  4. D
    Spliceosomes
Question 46Single Answer
What is the primary structure of a protein?
  1. A
    3D shape
  2. B
    Amino acid sequence
  3. C
    Subunit arrangement
  4. D
    Secondary structure elements
Question 47Single Answer
What force contributes to the stability of the DNA double helix?
  1. A
    Peptide bonds
  2. B
    Glycosidic bonds
  3. C
    Hydrogen bonds
  4. D
    Ester bonds
Question 48Single Answer
Which amino acid has a sulfur-containing side chain?
  1. A
    Alanine
  2. B
    Valine
  3. C
    Cysteine
  4. D
    Leucine
Question 49Single Answer
Which amino acid has an aromatic side chain?
  1. A
    Glycine
  2. B
    Serine
  3. C
    Tyrosine
  4. D
    Asparagine
Question 50Single Answer
What is the backbone of DNA made of?
  1. A
    Amino acids
  2. B
    Sugars and phosphates
  3. C
    Fatty acids
  4. D
    Glycerol
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