Nucleus-Nuclear Membrane, Chromatin, Nucleolus NEET Questions

Biology - Cell Structure and Function

Nucleus-Nuclear Membrane, Chromatin, Nucleolus MCQ Questions


1.
The nucleus as a cell organelle was first described by:
A.
Rudolf Virchow
B.
Antonie van Leeuwenhoek
C.
Robert Brown (1831)
D.
Schleiden and Schwann
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ANSWER :
C. Robert Brown (1831)
2.
The chromatin material was named by:
A.
Walther Flemming
B.
Robert Brown
C.
Camillo Golgi
D.
George Palade
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ANSWER :
A. Walther Flemming
3.
The term 'chromatin' literally refers to material that:
A.
Stains readily with basic dyes (chromos = colour)
B.
Is colourless
C.
Is found only in dead cells
D.
Is membrane-bound
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ANSWER :
A. Stains readily with basic dyes (chromos = colour)
4.
Cells with a true membrane-bound nucleus are called:
A.
Prokaryotic
B.
Eukaryotic
C.
Acellular
D.
Coenocytic
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ANSWER :
B. Eukaryotic
5.
The interphase nucleus is one that is:
A.
Actively dividing with visible chromosomes
B.
NOT dividing — has loose nucleoprotein network (chromatin), nuclear matrix, and nucleoli
C.
Just before metaphase
D.
In meiosis
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ANSWER :
B. NOT dividing — has loose nucleoprotein network (chromatin), nuclear matrix, and nucleoli
6.
The interphase nucleus contains:
A.
Mitotic spindle only
B.
Visible chromosomes only
C.
Centrosomes
D.
Chromatin, nuclear matrix, and nucleoli
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ANSWER :
D. Chromatin, nuclear matrix, and nucleoli