Which part of an animal virus is not reproduced in multiple copie

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Human ear ossicles are

  • incus and stapes

  • stapes

  • incus, malleus and stapes

  • incus and malleus


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2.

Which part of an animal virus is not reproduced in multiple copies?

  • Capsid

  • Protein

  • Envelope

  • Ribosome


D.

Ribosome

Virus is a nucleoprotein particle. It is made up of an outermost covering known as envelope, a protein coat, ie, capsid and a core of nucleic acid. During its reproduction, multiple cpoies of envelope capsid and nucleic acids are formed inside the host cells.

Since, ribosomes are absent in virus cells. Therefore, they are not reproduced during reproduction of viruses.


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3.

The echinoderms are

  • arborial insects

  • marine animals

  • terrestrial insects

  • freshwater forms


4.

The blood of cockroach contains no respiratory pigment. It means that

  • respiration is anaerobic

  • cockroach does not respire

  • oxygen goes directly into tissues by diffusion

  • oxygen goes into tissue by intracellular capillary system


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5.

Tube feet is the locomotory organ in 

  • starfish

  • jelly fish

  • silver fish

  • Scoliodon


6.

Follicle Stimulating Hormone is secreted by

  • anterior lobe of pituitary

  • hypothalamus

  • gonads

  • poterior lobe of pituitary


7.

Which of the following amino acids is not optically active?

  • Glycine

  • Valine

  • Leucine

  • Isoleucine


8.

Which of the following vitamins is water soluble as well as an antioxidant?

  • Vitamin- B1

  • Vitamin-A

  • Vitamin-D

  • Vitamin-C


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9.

During strenuous excercise, glucose is converted into

  • glycogen

  • pyruvic acid

  • starch

  • lactic acid


10.

'Adaptation' of eyes in dark is due to

  • depletionof vision pigment in rods

  • depletion of vision pigment in cones

  • repletion of vision pigment in rods

  • repletion of vision pigment in cones


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