Biology Questions Practice Question and Answer

Q:

"B" represents the gene for brown coat colour and “b” represents the gene for white coat colour. In the cross BB x bb all the offsprings have a brown coat. Which genetic principle is illustrated by this cross?

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  • 1
    Multiple alleles
    Correct
    Wrong
  • 2
    Dominance
    Correct
    Wrong
  • 3
    Co-dominance
    Correct
    Wrong
  • 4
    Crossing-over
    Correct
    Wrong
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Answer : 2. "Dominance "

Q:

Is the medium for spreading infectious diseases?

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  • 1
    Water
    Correct
    Wrong
  • 2
    Air
    Correct
    Wrong
  • 3
    both
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "both"

Q:

A disease named tuberculoris arises?

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  • 1
    Bacteria
    Correct
    Wrong
  • 2
    Malnutrition
    Correct
    Wrong
  • 3
    Protozoa
    Correct
    Wrong
  • 4
    by virus
    Correct
    Wrong
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Answer : 1. "Bacteria"

Q:

RNA is a polymeric molecule. What does RNA stand for?

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  • 1
    Rhino Nuclear Acid
    Correct
    Wrong
  • 2
    Resto Nucleus Acid
    Correct
    Wrong
  • 3
    Rado Nuclear Acid
    Correct
    Wrong
  • 4
    Ribo Nucleic Acid
    Correct
    Wrong
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Answer : 4. "Ribo Nucleic Acid"

Q:

About 70% of the Sun is made up of ____.

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  • 1
    Hydrogen
    Correct
    Wrong
  • 2
    Oxygen
    Correct
    Wrong
  • 3
    Carbon
    Correct
    Wrong
  • 4
    Helium
    Correct
    Wrong
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Answer : 1. "Hydrogen"

Q:

Pregnant women usually become deficient in

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  • 1
    Sodium and Calcium
    Correct
    Wrong
  • 2
    Iron and Sodium
    Correct
    Wrong
  • 3
    Calcium and Iron
    Correct
    Wrong
  • 4
    Magnesium and Iron
    Correct
    Wrong
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Answer : 3. "Calcium and Iron "

Q:

Which of the following is true about

Atrial Natriuretic Factor :

1) Peptide hormone 2) Increases blood pressure 3) Reduces blood pressure 4) Vaso constrictor 5) Cause vasodialation

1127 0

  • 1
    1, 2 and 4 are true
    Correct
    Wrong
  • 2
    1,3 and 5 are true
    Correct
    Wrong
  • 3
    2 and 4 are true
    Correct
    Wrong
  • 4
    5 only is true
    Correct
    Wrong
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Answer : 2. "1,3 and 5 are true "

Q:

What does our digestive system consist of?

1125 0

  • 1
    Alimentary canal and associated glands
    Correct
    Wrong
  • 2
    Digestive glands only
    Correct
    Wrong
  • 3
    Digestive glands only
    Correct
    Wrong
  • 4
    Mucous glands
    Correct
    Wrong
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Answer : 1. "Alimentary canal and associated glands"

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