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Nuclear envelope is a derivative of...

Nuclear envelope is a derivative of

A

Rough endoplasmic reticulum

B

Smooth endoplasmic reticulum

C

Membrane of Golgi complex

D

Microtubules

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A
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[A] : The nuclear envelope is the derivative of membrane of mitochondria . [R] : Nuclear membrane does not allow free exhange of ions between the nucleus and the cytoplasm .

Nuclear envelope disappears.

Nuclear envelope reappears at

Nuclear envelope reappears at

At certain places, the nuclear envelope is interrupted by the presence of nuclear pores which are enclosed by cir- cular structures called as

Dense fibrous complex lying adjacent to inner membrane of nuclear envelope is (A) Chromatin (B) Fibrous lamina (C) Nuclear lamina (D) Both B and C

At a number of places the nuclear envelope is interrupted by minute (A)____ which are formed by the (B)_____ of its two membranes.

Which one of the following precedes re-formation of the nuclear envelope during M phase of the cell cycle.

A : The complete disintegration of the nuclear envelope marks the start of metaphase. R : Chromosomes are distinct with two chromatids at this stage.

Which one of the following precedes re-formation of the nuclear envelope during M phase of the cell cycle.

AAKASH INSTITUTE ENGLISH-CELL:THE UNIT OF LIFE -Assignment (section-C) ( Previous Year Qusetion)
  1. Balbiani rings are sites of

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  2. In photosynthesis, the light independent reactions take place at

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  3. Nuclear envelope is a derivative of

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  4. True nucleus is absent in

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  5. The structures that are formed by stacking of organized flattened memb...

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  6. DNA is not present is

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  7. Select the correct matching in the following pairs

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  8. Which one of the following is not an inclusion body found in prokaryot...

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  9. The chromosomes in which centromere is situated close to one end are

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  10. A somatic cell that has just completed the S-phase of its cell cycle, ...

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  11. Which structures perform the function of mitochondria in bacteria?

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  12. The solid linear cytoskeletal elements having a diameter of 6 nm and...

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  13. The osmotic expansion of a cell kept in water is chiefly regulated by

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  14. Match the following and select the correct answer

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  15. Which one of the following organelle in the figure corretly matche...

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  16. The Glogi complex palys a major role

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  17. A major site for synthesis of lipids is

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  18. Nuclear membrane is absent in

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  19. Which one of the following does nto differ in E. coli and Chlam...

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  20. Select the correct statement from the following regrading cell mem...

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