For More Quiz Questions click here to download Global Quiz on Google PlayStore
NATIONAL OPEN UNIVERSITY OF NIGERIA
UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
OCTOBER/NOVEMBER 2019 EXAMINATION
BIO 303: General Cytology
TIME: 2Hours
CREDIT UNITS: 2
INSTRUCTION: Answer FOUR questions in all .Question 1 is compulsory
1a. Highlight the contributions of any 6 scientists to the history of Cytology (9marks)
1b.In a tabular form differentiate between proteins and deoxyribonucleic acids (DNA) (10marks)
1c. List 6 disadvantages of the electron microscope (6marks)
2a. List 2 components peculiar to the fluorescence microscope (1mark)
2b. Discuss the principle by which fluorescence microscope operates (9 marks).
2c. List the advantages and disadvantages of fluorescence microscope? (5 marks)
3. Write short notes on the following forms of variations found in chromosomes
i. Deletions (3marks)
ii. Duplications (3marks)
iii. Inversions (6marks)
iv. Euploidy (3marks)
4. Discuss the roles of the major control checkpoints in the eukaryotic cell cycle (15 marks).
5a. Define the term ‘Embryogenesis’ (2 marks)
5b. Explain the major occurrences between the third and twenty eighth week of foetal development in humans (13marks)
For More Quiz Questions click here to download Global Quiz on Google PlayStore
Select NOUN Past Questions & Answers by Faculties
National Open University of Nigeria (NOUN) Faculty of Sciences Past Questions and Answers.
National Open University of Nigeria (NOUN) Faculty of Education Past Questions and Answers.
National Open University of Nigeria (NOUN) Faculty of Arts and Social Sciences Past Questions and Answers.
National Open University of Nigeria (NOUN) Faculty of Law Past Questions and Answers.
National Open University of Nigeria (NOUN) Faculty of Management Sciences Past Questions and Answers.
National Open University of Nigeria (NOUN) Faculty of Health Sciences Past Questions and Answers.
National Open University of Nigeria (NOUN) Faculty of Agricultural Sciences Past Questions and Answers.
Select Project Topics & Materials by Categories
Universities, Polytechnic's and Colleges of Education Accounting Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Biology Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Business Education Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Chemistry Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Computer Science Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Criminology & Security Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Economics Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Education Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education English/Linguistic Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Entrepreneurship Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Environmental Science Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Law Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Marketing Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Physics Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Political Science Project Topics and Materials.
Universities, Polytechnic's and Colleges of Education Public Administration Project Topics and Materials.
