Question

Which of the following is not present in the nucleus
a .Nuclear envelope
b. Nucleolus
c. Contirole
d. Nucleoplasm​

Answer 1

Answer:

c. centriol is not present in the nucleus

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Answer 2

Among the given options Option (c) Centriole is not present in the nucleus.

Nuclear envelope, Nucleolus, and Nucleoplasm are present in the nucleus.

Structure of the nucleus of the cell:

• The circular or oval structure present in the center of the cell is called the nucleus.
• Robert Brown first discovered it.
• Usually, a cell has one nucleus.

The nucleus consists of the following major parts-

1. Nuclear membrane -

• A double layer covering the nucleus is called a nuclear membrane.
• It has many small holes through which the nuclear matter inside the nucleus can go out.

2. Nucleoplasm –

• The substance surrounded by the nuclear membrane is called Nucleoplasm.
• It is a transparent, cohesive liquid made up of nucleoproteins.
• It contains ribosomes, mineral salts, enzymes, RNA, chromatin threads, and nuclei.

3. Chromatin material -

• Chromatin is a network of fine thread-like structures.
• Whenever a cell is about to divide, it gets organized into chromosomes.
• Chromosomes have genetic properties passed on from parents to the next generation in the form of DNA (deoxy ribonucleic acid) molecules.
• The RNA in the nucleus is ribonucleic acid which helps in protein synthesis.

4. Nucleolus -

• The cell's nucleus consists of one or two nucleoli.
• It contains protein, RNA, and DNA.

Centriole:  

• The centriole is a dotted structure found in animal cells.
• It takes part in cell division.
• They have their RNA and DNA.
• Centrioles producing cilia and flagella are called basal bodies.

Correct Question :

Which of the following is not present in the nucleus

a .Nuclear envelope

b. Nucleolus

c. Centriole

d. Nucleoplasm​

Learn more on Brainly :

What is a nucleus and what is inside a nucleus?

https://brainly.in/question/20270911

What is Nucleus? drawing of Nucleus​

https://brainly.in/question/28577464

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