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#Question id: 23142


What is the value of numerical aperture of microscope if glycerol is used and sin α= 70o?

#Zoology
  1. 1.3
  2. 1.5
  3. 1.2
  4. 1.4

Answer:- Option(s): 3


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#Question id: 2726

#Zoology

Which property is shared by the five histone proteins?

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#Question id: 2727

#Zoology

What marks the difference between the solenoid and the zig-zag models of 30 nm fibres?

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#Question id: 2730

#Zoology

The histone tails are required for chromatin to condense from the beads-on- a-string conformation into the 30-nm fiber. Recent experiments indicate that the N-terminal tails of histone H4, particularly_____________, are critical for forming the 30-nm fiber.

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#Question id: 2731

#Zoology

Which of the following is not a characteristic of the nuclear scaffold?

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#Question id: 2737

#Zoology

The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by:

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#Question id: 2738

#Zoology

Which of the following function is not served by DNA packaging?

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