MCQ on Nucleolus: Biology is one of the most important and vital sections in NEET. It includes theories, descriptions, discoveries, diagrams, definitions, explanation of differences and relations. Most of the concepts covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12. Other related sources make up for the rest of the syllabus.
In this post we are providing you MCQ on Nucleolus, which will be beneficial for you in upcoming NEET, AIIMS, JIPMER, PGIMER, CBSE Board, ICSE Board, Class 12th, 11th.
Q1. Nucleoproteíns are synthesised in ________. (a) cytoplasm
a) cytoplasm
b) nucleoplasm
c) nuclear envelope
d) nucleolus
Q2. Find the incorrect statement. (b) only one nucleolus is found in the nucleus
a) nucleoli are synthesised around nucleolar organizing regions
b) only one nucleolus is found in the nucleus
c) transcription of rDNA occurs in the fibrillar centre
d) nucleolus contains a high concentration of iron in various plant species
Q3. The main function of nucleolus is ________. (d) RNA synthesis
a) Protein synthesis
b) ATP production
c) DNA synthesis
d) RNA synthesis
Q4. Nucleoli were discovered by ________. (a) Felice Fontana
a) Felice Fontana
b) Robert Hook
c) Robert Brown
d) Leeuwenhoek
Q5. An outer membrane is not present in ________. (d) nucleoli
a) lysosomes
b) mitochondria
c) plastid
d) nucleoli
Q6. Synthesis of ribosomes in prokaryotes occurs in ________. (c) cytosol
a) nucleus
b) nucleolus
c) cytosol
d) nucleoplasm
Q7. Which of the components of nucleolus disappears during late prophase and reappears during telophase? (a) Nucleolus
a) Nucleolus
b) Nucleoplasm
c) Chromosomes
d) Nuclear pore
Q8. Which of the following can pass through a nuclear pore? (d) both (a) and (c)
a) Ribosomal subunits
b) Mitochondria
c) RNA
d) both (a) and (c)
Q9. Ribosomes are produced and assembled in ________. (c) nucleolus
a) mitochondria
b) cytoplasm
c) nucleolus
d) Golgi apparatus
Q10. Which of the following are synthesised in the nucleolus? (b) rRNA
a) tRNA
b) rRNA
c) DNA
d) all of the above
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