ExamsSCHOOL OF SCIENCE AND TECHNOLOGY

National Open University Exam Past Question – BIO 303 October, 2013 Examination

NATIONAL OPEN UNIVERSITY OF NIGERIA BIO 303 GENERAL CYTOLOGY EXAMINATION

14/16, Ahmadu Bello Way, Victoria Island

 

SCHOOL OF SCIENCE AND TECHNOLOGY October, 2013 Examination

 

Course Code: BIO 303

 

Course Title:  GENERAL CYTOLOGY EXAMINATION

 

INSTRUCTION: ANSWER ONLY 4 QUESTIONS                                                                         TIME: 2 HOURS

 

  1. a. Define the following terms:
  2. Cytogenetics; ii.  Cytology; and iii.       Genetics.
  3. i. Mention the different types of Structural Chromosomal Variations. ii. Define each of the mentioned structural chromosomal variations.
  4. c. i. What is Numerical Chromosomal Variation?
  5. ii. Mention the different types of numerical chromosomal var

 

  1. a. Mention the general cytogenetic procedures synonymous to all cytogenetic techniques. b. i. Define Karyotype.
  2. ii. After Karyotyping, mention the observable characteristics in the chromosomes. c. Outline the importance and applications of cytogenetics.

 

  1. a. Mention the molecular composition of a cell.
  2. State the functions/importance of protein in a living cell. c. Mention the different types of Nucleic acids.
  3. Outline the roles of the different types of nucleic acids.

 

 

  1. i. Mention the two major phase of cell cycle. ii. Name the five stages of mitosis.

iii. Define the word “Embryology”.

  1. Mention the stages of embryogenesis. v. Explain briefly, the word “Diakinesis.

 

  1. a. Three (3) major control checkpoints exist during the course of eukaryotic cell cycle.
YOU MAY ALSO LIKE  National Open University Exam Past Question - EDU 733 MAY/JUNE 2012 EXAMINATION

Mention these checkpoints. Explain any one of these checkpoints.

  1. In a tabular form, make a brief comparism between RNA and Proteins.

 

 

  1. a. State the function(s) of the following parts of a Light Microscope:
  2. Eye piece; ii.        Body tube; iii.       Objectives;
  3. Diaphragm; and v.         Stage.
  4. State the advantages of a Phase Contrast Microscope.
  5. c. Define Darkfield Microscopy.
  6. Mention two advantages of an electron microscope.

 

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button