HomeLearn Fast select Course
Change UnitChange SubjectLast Menu
NEET-XII-Biology

SQP-term1

with Solutions - page 2
 
  • Qstn #13
    Which of the following statements indicates parallelism in genes and chromosomes?
    (i) They occur in pairs
    (ii) They segregate during gamete formation
    (iii) They show linkage
    (iv) Independent pairs segregate independently
    A. (i) and (iii)
    B. (ii) and (iii)
    C. (i), (ii) and (iii)
    D. (i), (ii) and (iv)
    Ans : D
  • Qstn #14
    Which of the following amino acid substitution is responsible for causing sickle cell
    anemia?
    A. Valine is substituted by Glutamic acid in the α globin chain at the sixth position
    B. Valine is substituted by Glutamic acid in the β globin chain at seventh position
    C. Glutamic acid is substituted by Valine in the α globin chain at the sixth position
    D. Glutamic acid is substituted by Valine in the β globin chain at the sixth position
    Ans : D
  • Qstn #15
    In human beings, where genotype AABBCC represents dark skin colour, aabbcc
    represents light skin colour and AaBbCc represents intermediate skin colour; the
    pattern of genetic inheritance can be termed as:
    A. Pleiotropy and codominance
    B. Pleiotropy and incomplete dominance
    C. Polygenic and qualitative inheritance
    D. Polygenic and quantitative inheritance
    Ans : D
  • Qstn #16
    Which of the following combination of chromosome numbers represents the correct
    sex determination pattern in honey bees?
    A. Male 32, Female 16
    B. Male 16, Female 32
    C. Male 31, Female 32
    D. Female 32, Male 31
    Ans : B
  • Qstn #17
    Rajesh and Mahesh have defective haemoglobin due to genetic disorders. Rajesh
    has too few globin molecules while Mahesh has incorrectly functioning globin
    molecules. Identify the disorder they are suffering from.
    Ans : B
  • Qstn #18
    Which of the following criteria must a molecule fulfil to act as a genetic material?
    (i) It should not be able to generate its replica
    (ii) It should chemically and structurally be stable
    (iii) It should not allow slow mutation
    (iv) It should be able to express itself in the form of Mendelian Characters
    A. (i) and (ii)
    B. (ii) and (iii)
    C. (iii) and (iv)
    D. (ii) and (iv)
    Ans : D
  • Qstn #19
    The promoter site and the terminator site for transcription are located at
    A. 3′ (downstream) end and 5′ (upstream) end, respectively of the transcription unit
    B. 5′ (upstream) end and 3′ (downstream) end, respectively of the transcription unit
    C. the 5′ (upstream) end of the transcription unit
    D. the 3′ (downstream) end of the transcription unit
    Ans : B
  • Qstn #20
    Which of the following is correct about mature RNA in eukaryotes?
    A. Exons and introns do not appear in the mature RNA.
    B. Exons appear, but introns do not appear in the mature RNA.
    C. Introns appear, but exons do not appear in the mature RNA.
    D. Both exons and introns appear in the mature RNA.
    Ans : B
  • Qstn #21
    In E.coli, the lac operon gets switched on when
    A. lactose is present and it binds to the repressor.
    B. repressor binds to operator.
    C. RNA polymerase binds to the operator.
    D. lactose is present and it binds to RNA polymerase.
    Ans : A
  • Qstn #22
    Oswald Avery, Colin MacLeod and Maclyn McCarty used enzymes to purify
    biochemicals such as proteins, DNA and RNA from the heat-killed S cells to see which
    ones could transform live R cells into S cells in Griffith's experiment. They observed
    that
    A. Proteases and RNases affected transformation.
    B. DNase inhibited transformation.
    C. Proteases and Lipases affected transformation.
    D. RNases inhibited transformation.
    Ans : B
  • Qstn #23
    AUG on the mRNA will result in the activation of which of the following RNA having
    correct combination of amino acids:

    Site A Site B
    A. UAC Methionine
    B. Methionine UAC
    C. Methionine AUG
    D. AUG Methionine
    Ans : B
  • Qstn #24
    Short stretches of DNA used to identify complementary sequence in a sample
    are called
    A. probes
    B. markers
    C. VNTRs
    D. primers
    Ans : A
  • #
    Section : B
    Section - B consists of 24 questions (Sl. No.25 to 48). Attempt any 20 questions from
    this section. The first attempted 20 questions would be evaluated.
    -Question No. 25 to 28 consist of two statements - Assertion (A) and Reason (R).
    Answer these questions selecting the appropriate option given below:
    A. Both A and R are true and R is the correct explanation of A
    B. Both A and R are true and R is not the correct explanation of A
    C. A is true but R is false
    D. A is False but R is true
  • Qstn #25
    Assertion: Lactational amenorrhea is the natural method of contraception.
    Reason: It increases the phagocytosis of sperm.
    Ans : C
  • Qstn #26
    Assertion: Saheli, an oral contraceptive for females, contains a steroidal preparation.
    Reason: It is a "once a week" pill with very few side effects.
    Ans : D
next page