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NEET-XII-Biology

Previous Year Paper year:2021

with Solutions - page 4
 
  • Qstn #45
    Statement I : The codon 'AUG' codes for methionine and phenylalanine.
    Statement II : 'AAA' and 'AAG' both codons code for the amino acid lysine.
    In the light of the above statements, choose the correct answer from the options given below.
    (A)Both Statement I and Statement II are true
    (B)Both Statement I and Statement II are false
    (C)Statement I is correct but Statement II is false
    (D)Statement I is incorrect but Statement II is true
    digAnsr:   D
    :
  • Qstn #46
    Assertion (A): A person goes to high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart palpitations.
    Reason (R): Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.
    In the light of the above statements, choose the correct answer from the options given below.
    (A)Both (A) and (R) are true and (R) is the correct explanation of (A)
    (B)Both (A) and (R) are true but (R) is not the correct explanation of (A)
    (C)(A) is true but (R) is false
    (D)(A) is false but (R) is true
    digAnsr:   A
    :
  • Qstn #47
    Match List - I with List - II.
    List I List II
    a Allen's Rule i Kangaroo rat
    b Physiological adaptation ii Desert lizard
    c Behavioural adaptation iii Marine fish at depth
    d Biochemical adaptation iv Polar seal

    Choose the correct answer from the options given below.
    (A)
    (a) - (iv),
    (b) - (ii),
    (c) - (iii),
    (d) - (i)
    (B)
    (a) - (iv),
    (b) - (i),
    (c) - (iii),
    (d) - (ii)
    (C)
    (a) - (iv),
    (b) - (i),
    (c) - (ii),
    (d) - (iii)
    (D)
    (a) - (iv),
    (b) - (iii),
    (c) - (ii),
    (d) - (i)
    digAnsr:   C
    :
  • Qstn #48
    Match List - 1 with List - II
    List I List II
    a Filariasis i Haemophilus influenzae
    b Amoebiasis ii Trichophyton
    c Pneumonia iii Wuchereria bancrofti
    d Ringworm iv Entamoeba histolytica

    Choose the correct answer from the options given below
    (A)
    (a) - (iv),
    (b) - (i),
    (c) - (iii),
    (d) - (ii)
    (B)
    (a) - (iii),
    (b) - (iv),
    (c) - (i),
    (d) - (ii)
    (C)
    (a) - (i),
    (b) - (ii),
    (c) - (iv),
    (d) - (iii)
    (D)
    (a) - (ii),
    (b) - (iii),
    (c) - (i),
    (d) - (iv)
    digAnsr:   B
    :
  • Qstn #49
    Which of these is not an important component of initiation of parturition in humans ?
    (A)Increase in estrogen and progesterone ratio
    (B)Synthesis of prostaglandins
    (C)Release of Oxytocin
    (D)Release of Prolactin
    digAnsr:   D
    :
  • Qstn #50
    Match List-I with List-II
    List I List II
    a Scapula i Cartilaginous joints
    b Cranium ii Flat bone
    c Sternum iii Fibrous joints
    d Vertebral column iv Triangular flat bone

    Choose the correct answer from the options given below.
    (A)
    (a) - (i) ,
    (b) - (iii),
    (c) - (ii),
    (d) - (iv)
    (B)
    (a) - (ii) ,
    (b) - (iii),
    (c) - (iv) ,
    (d) - (i)
    (C)
    (a) - (iv) ,
    (b) - (ii),
    (c) - (iii) ,
    (d) - (i)
    (D)
    (a) - (iv) ,
    (b) - (iii),
    (c) - (ii),
    (d) - (i)
    digAnsr:   D
    :
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