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Nucleus



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Q1. Which region of chromatin is transcriptionally silent?

(a) Nucleoid
(b) Centromere
(c) Euchromatin
(d) Heterochromatin

Q2. Which of the following is not true for chromatin?

(a) Organized structure of DNA and protein
(b) These are highly condensed DNA
(c) It is found in the nucleus
(d) It contains a single dsDNA

Q3. Non-membrane bound body of the nucleus which disappears in the late prophase and reappears in telophase_______

(a) Nucleolus
(b) Chromosome
(c) Nucleoplasm
(d) Nuclear pore

Q4. Name the signal which helps protein to move in or out of the nucleus?

(a) Notch signal
(b) Paracrine signal
(c) Nuclear localization signal
(d) Chemical signals

Q5. Name the structure which is used to transfer macromolecules between the cytoplasm and nucleus.

(a) Microtubules
(b) Nuclear pores
(c) Cilia
(d) Centrioles

Q6. Mark the INCORRECT statement about nuclear lamina.

(a) Filaments present in the inner membrane of the nucleus
(b) Made up of lamin proteins
(c) Provide mechanical support to the nucleus
(d) It has bounded with the ribosomes

Q7. Which of the following is not a component of the nucleus?

(a) Chromosome
(b) Nucleolus
(c) Cytoplasm
(d) Nuclear envelope

Q8. Which of the following microorganism have two nuclei?

(a) Slime molds
(b) Cyanobacteria
(c) Amoeba
(d) Paramecium

Q9. Red blood cells are multinucleate in nature.

(a) True
(b) False
(c)
(d)

Q10. Name the control center of the eukaryotic cell?

(a) Nucleus
(b) Ribosome
(c) Cytoplasm
(d) Golgi complex


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356 views

On Bombarding 7N14 With α - Particles, The Nuclei Of The Product Formed After The Release Of A Proton Will Be

Modified 231 Year Ago

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231 Year Ago

On Bombarding 7N14 With α - Particles, The Nuclei Of The Product Formed After The Release Of A Proton Will Be

0 votes
0 Answer
274 views

β-particle Is Emitted In A Radioactive Reaction When

Modified 6 Year Ago

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6 Year Ago

β-particle Is Emitted In A Radioactive Reaction When

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268 views

The Number Of Beta Particles Emitted In The Radioactive Decay From 238/92 U And 206/82 Pb Is

Modified 6 Year Ago

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6 Year Ago

The Number Of Beta Particles Emitted In The Radioactive Decay From 238/92 U And 206/82 Pb Is

0 votes
0 Answer
266 views

When Any Radioactive Element Emits B-particle Some Product Is Obtained. They Both Are

Modified 6 Year Ago

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6 Year Ago

When Any Radioactive Element Emits B-particle Some Product Is Obtained. They Both Are

0 votes
0 Answer
264 views

A Position Is Emitted From 23/11 Na. The Ratio Of The Atomic Mass And Atomic Number Of The Resulting Nuclide Is

Modified 6 Year Ago Neysa

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Neysa
6 Year Ago

A Position Is Emitted From 23/11 Na. The Ratio Of The Atomic Mass And Atomic Number Of The Resulting Nuclide Is

0 votes
0 Answer
257 views

Which Of The Following Nuclear Transformation Is (n, P) Type

Modified 231 Year Ago Ankush Sharma

257
Ankush Sharma
231 Year Ago

Which Of The Following Nuclear Transformation Is (n, P) Type

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