Biology Questions Practice Question and Answer

Q:

The edible portion of mango is

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  • 1
    Embryo
    Correct
    Wrong
  • 2
    Endocarp
    Correct
    Wrong
  • 3
    Endosperm
    Correct
    Wrong
  • 4
    Mesocarp
    Correct
    Wrong
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Answer : 4. "Mesocarp"
Explanation :

(D) Mesocarp

The edible portion of a mango is the mesocarp, which is the fleshy and pulpy middle layer of the fruit. The outer skin (exocarp) is not typically consumed, and the inner seed (endocarp) is also not eaten. The mesocarp is the part that is juicy, sweet, and commonly enjoyed in various culinary applications, such as eating the fruit fresh, making juices, or incorporating it into salads and desserts.

Q:

Which of the following is true?

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  • 1
    DNA is the genetic material in all the viruses
    Correct
    Wrong
  • 2
    RNA is the genetic material in all the viruses
    Correct
    Wrong
  • 3
    DNA is the genetic material in most of the organism
    Correct
    Wrong
  • 4
    RNA is the genetic material in most viruses and bacteria
    Correct
    Wrong
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Answer : 3. "DNA is the genetic material in most of the organism "

Q:

The focal length of a plane mirror is ______.

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  • 1
    positive
    Correct
    Wrong
  • 2
    negative
    Correct
    Wrong
  • 3
    infinity
    Correct
    Wrong
  • 4
    zero
    Correct
    Wrong
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Answer : 3. "infinity"

Q:

Side effects in jaundice

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  • 1
    Pancreatic
    Correct
    Wrong
  • 2
    Stomach
    Correct
    Wrong
  • 3
    Small intestine
    Correct
    Wrong
  • 4
    Liver
    Correct
    Wrong
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Answer : 4. "Liver"

Q:

The total number of chromosomes in a human being is-

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  • 1
    46
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    52
    Correct
    Wrong
  • 4
    Indeterminate
    Correct
    Wrong
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Answer : 1. "46"

Q:

What is the weight of human heart?

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  • 1
    100 gms
    Correct
    Wrong
  • 2
    1000 gms
    Correct
    Wrong
  • 3
    800 gms
    Correct
    Wrong
  • 4
    300 gms
    Correct
    Wrong
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Answer : 4. "300 gms"

Q:

Blood is an 

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  • 1
    Connective tissue
    Correct
    Wrong
  • 2
    Epithelial tissue
    Correct
    Wrong
  • 3
    Both of the above
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Connective tissue "

Q:

Heart attack occurs due to :

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  • 1
    Bacterial attack on the heart
    Correct
    Wrong
  • 2
    Stopping of heart beat
    Correct
    Wrong
  • 3
    Lack of blood supply to the heart itself
    Correct
    Wrong
  • 4
    Impairment of heart’s working due to unknown reasons
    Correct
    Wrong
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Answer : 3. "Lack of blood supply to the heart itself"

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