IIT JEE Practice Question and Answer

Q: Who translated Mahabharata into Persian? 2060 0

  • 1
    Jahangir
    Correct
    Wrong
  • 2
    Aurangzeb
    Correct
    Wrong
  • 3
    Akbar
    Correct
    Wrong
  • 4
    Shahjahan
    Correct
    Wrong
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Answer : 3. "Akbar"
Explanation :

Answer: C) Akbar Explanation: The Mahabharata was translated into Persian at Akbar’s orders, by Faizi and 'Abd al-Qadir Bada' uni (c. 1540 – 1615) and named Razmnameh.

Q: What is the saddest fruit? 4546 0

  • 1
    Blackberries
    Correct
    Wrong
  • 2
    Strawberries
    Correct
    Wrong
  • 3
    Blueberries
    Correct
    Wrong
  • 4
    Pineapples
    Correct
    Wrong
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Answer : 3. "Blueberries"
Explanation :

Answer: C) Blueberries Explanation: Blueberries are the saddest fruits.   Reason :: In English some colors are associated with feelings. Blue is associated with sadness. When you "feel blue" it means that you are feeling sad.   Hence, as blueberries has blue in its name it indicates that that is the saddest fruit in logic.

Q: What one word has the most letters in it? 1338 0

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Answer :
Explanation :

ALPHABET is the only has the most letters in it.   Alphabet has all the 26 letters from A - Z.    Hence, ALPHABET is one word that has the most letters in it.

Q: Energy is measured in units called 1526 0

  • 1
    Newtons
    Correct
    Wrong
  • 2
    Watts
    Correct
    Wrong
  • 3
    Joules
    Correct
    Wrong
  • 4
    Ohm/mtr
    Correct
    Wrong
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Answer : 3. "Joules"
Explanation :

Answer: C) Joules Explanation: Energy is measured in units called Joules.   Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.   1 Joule  =  107 ergs or 0.7377 foot-pounds.

Q: Which nitrogenous base is not found in dna? 1384 0

  • 1
    Uracil
    Correct
    Wrong
  • 2
    Thymine
    Correct
    Wrong
  • 3
    Cytosine
    Correct
    Wrong
  • 4
    Guanine
    Correct
    Wrong
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Answer : 1. "Uracil"
Explanation :

Answer: A) Uracil Explanation: A nitrogenous base, or nitrogen-containing base, is an organic molecule with a nitrogen atom that has the chemical properties of a base. The main biological function of a nitrogenous base is to bond nucleic acids together. A nitrogenous base owes its basic properties to the lone pair of electrons of a nitrogen atom.   In DNA, four bases have been found. They are 1. Adenine (A), 2. Guanine (G), 3. Cytosine (C) and 4. Thymine (T).   The first three of these bases are found in RNA also but the fourth which is Uracil (U) is absent in it. RNA contains cytosine and uracil as pyrimidine bases while DNA has cytosine and thymine.

Q: Which of these is a receptor molecule? 1558 0

  • 1
    A
    Correct
    Wrong
  • 2
    B
    Correct
    Wrong
  • 3
    C
    Correct
    Wrong
  • 4
    E
    Correct
    Wrong
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Answer : 2. "B"
Explanation :

Answer: B) B Explanation: The receptor molecules, which receive signals from outside the cell, passing the signal to the inside.   In order for a nerve cell, or any cell, to perceive its environment, it needs a sensory apparatus. And for an individual cell, most of that sensation is derived at the cell surface. So, it expresses on its cell surface proteins that span across the membrane. In the outside world, these proteins can act to receive signals, catching molecules on the outside and then as the molecule passes to the inside of the cell, they can send signals like alarm signals that can tell the cell that a particular molecule is outside.   Hence, here B is the receptor cell.

Q: Commissioned - Antonym 1322 0

  • 1
    Instruct
    Correct
    Wrong
  • 2
    Empower
    Correct
    Wrong
  • 3
    Nominate
    Correct
    Wrong
  • 4
    Dismiss
    Correct
    Wrong
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Answer : 4. "Dismiss"
Explanation :

Answer: D) Dismiss Explanation: Commissioned means Authority granted for a particular action or function.   Here, in the given options Dismiss is the only word which is opposite in meaning to commissioned.   Hence, Antonym of  Commissioned is Dismiss.

Q: Nucleotides are attached by bonds between the 1379 0

  • 1
    phosphates and sugars
    Correct
    Wrong
  • 2
    nitrates and sugars
    Correct
    Wrong
  • 3
    nitrates and phosphates
    Correct
    Wrong
  • 4
    sugars and hydrates
    Correct
    Wrong
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Answer : 1. "phosphates and sugars"
Explanation :

Answer: A) phosphates and sugars Explanation: In DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5' phosphate group of one nucleotide and the 3'-OH group of another.   Hence, in this manner, each strand of DNA has a "backbone" of phosphate-sugar-phosphate-sugar-phosphate.

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