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Ultra violet light causes...

Ultra violet light causes

A

Sticky metaphases

B

Photodynamic action

C

Destruction of hydrogen bonds between complementary DNA strands

D

Formation of pyrimidines

Text Solution

Verified by Experts

The correct Answer is:
C
Destruction of hydrogen bonds between complementary DNA strands
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Knowledge Check

  • The frequency of X - rays, gamma - rays and Ultra­violet rays are respectively a, b and c then

    A
    `agtb,bgtc`
    B
    `altb,bgtc`
    C
    `agtb,bltc`
    D
    `altb,bltc`

  • White light forms a continuous spectrum of minimum wavelength 3800 A^@ corresponding to violet light and maximum wavelength 7800A^@ corresponding to red light. Find the minimum and maximum frequencies of white light

    A
    `3.846 times 10^14 Hz, 7.895 times 10^14 Hz`
    B
    `2.546 times 10^14 Hz, 6.985 times 10^14 Hz`
    C
    `4.846 times 10^14 Hz, 8.895 times 10^14 Hz`
    D
    `1.546 times 10^14 Hz, 5.985 times 10^14 Hz`

  • Tetany is caused by

    A
    Hyperparathyroidism
    B
    Hypoparathyroidism
    C
    Hyperthyroidism
    D
    Hypothyroidism

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