SAMPLE BIOLOGY QUESTIONS FROM PAKPREP.COM

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Topic:

Biological Molecules

Question:

The two chains of DNA are held together by what type of bomds?

Options:

  • Ionic bonds
  • Covalent bonds
  • Disulphide bonds
  • Hydrogen bonds

Correct Option:

Hydrogen bonds

Explanation:

Two chains of DNA are held together by weak hydrogen bonds.

Topic:

Digestion

Question:

Which component of bile imparts green color to it?

Options:

  • Digestive Enzymes
  • Cholesterol
  • Bile pigments
  • Bile salts

Correct Option:

Bile pigments

Explanation:

Green color is because of bile pigments which are formed from the breakdown of hemoglobin in liver forming bilivirdin i.e green in color.

Topic:

Immunity

Question:

Snake bite is treated with which type of immunization?

Options:

  • Active
  • Passive
  • Humoral
  • Specific

Correct Option:

Passive

Explanation:

Snake bite is treated by passive immunity. Antibodies are introduced directly in the body. When antibodies are introduced directly in human body is called passive immunity.

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