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12th Standard English Medium Biology (Botany) Subject Principles and Processes of Biotechnology Book Back 1 Mark Questions with Solution Part - II

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. The point mutation sequence for transition, transition, transversion and transversion in DNA are ______.

    (a)

    A to T, T to A, C to G and G to C

    (b)

    A to G, C to T, C to G and T to A

    (c)

    C to G, A to G, T to A and G to A

    (d)

    G to C, A to T, T to A and C to G

  2. If haploid number in a cell is 18. The double monosomic and trisomic number will be _____.

    (a)

    35 and 37

    (b)

    34 and 37

    (c)

    37 and 35

    (d)

    17 and 19

  3. Changing the codon AGC to AGA represents _______.

    (a)

    missense mutation

    (b)

    nonsense mutation

    (c)

    frameshift mutation

    (d)

    deletion mutation

  4. Assertion (A): Gamma rays are generally use to induce mutation in wheat varieties.
    Reason (R): Because they carry lower energy to non-ionize electrons from atom

    (a)

    A and R are correct

    (b)

    A is correct. R is wrong

    (c)

    A is wrong. R is correct

    (d)

    A and R are wrong

  5. How many map units separate two alleles A and B if the recombination frequency is 0.09?

    (a)

    900 cM

    (b)

    90 cM

    (c)

    9 cM

    (d)

    0.9 cM

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