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Nucleus

Which of the ...

Question

Which of the following statements are true regarding nucleus?

A

Nucleus is present in eukaryotic cells only

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B

Nucleus is bound by a single membrane

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C

Nucleus contains chromosomes

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D

Nucleus synthesises proteins

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Solution

The correct options are
A
Nucleus is present in eukaryotic cells only

C
Nucleus contains chromosomes

A nucleus is a double-membrane bounded cell organelle present in eukaryotic cells. It controls the functioning of the cell. It contains chromosomes, through which heredity characters are passed from one generation to the other.

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Similar questions

Q. Which one of the following process occurs inside the nucleus during protein synthesis in a eukaryotic cells?

Q. Which of the following statements are true about lysosomes?
(a) They are sites of protein synthesis.
(b) They are present only in animal cells.
(c) They are attached to the nucleus.
(d) They are known as 'suicide bags',

In eukaryotic cell a true nucleus is absent.

Q. Which of these statements is/are true?

(i) The surface area available for cellular functions in a prokaryotic cell is less than that in a eukaryotic cell.
(ii) The total genome size of a prokaryotic cell is always less than that of a eukaryotic cell.
(iii) Unlike eukaryotes, no special respiratory organelles are found in prokaryotes. Hence they respire at a much less rate than eukaryotes.
(iv) Eukaryotic cells show various membrane-bound organelles such as chloroplasts and nucleus while ribosomes are the only membrane-bound organelles found in prokaryotes.

Q. How many following statements are correct?
(A) Nucleus as a cell organelle was first described by Robert Brown as early as 1651.
(B) The interphase nucleus has highly condensed nucleoprotein fibres called chromatin.
(C) During different stages of cell division, cells show structured chromatin in place of the nucleus.
(D) Every chromosome essentially has a primary constriction which is also known as NOR.
(E) Many membrane-bound minute vesicles called microbodies that contain various enzymes are present in both plant and animal cells.

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