ExamsSCHOOL OF SCIENCE AND TECHNOLOGY

National Open University Exam Past Question – BIO 301 OCTOBER/NOVEMBER 2014 EXAMINATION

NATIONAL OPEN UNIVERSITY OF NIGERIA BIO 301 GENETICS II

14-16 AHMADU BELLO WAY, VICTORIA ISLAND LAGOS SCHOOL OF SCIENCE AND TECHNOLOGY

OCTOBER/NOVEMBER 214 EXAMINATION

 

COURSE CODE: BIO 301

COURSE TITLE: GENETICS II TIME ALLOWED: 2 Hours

INTRUCTION: Answer question ONE (1) and any other THREE (3) questions

 

  1. (a) Enumerate the role of structural chromosomal aberrations in plant breeding. (5 marks)

(b) Account for the mode of occurrence of the different inversions. (8 marks) (c) Sickle cell anemia is regarded as a heritable disease. Discuss (12 marks)

 

  1. Write short notes on the following:
  2. Pleiotropism (5 marks)
  3. ii. Duffy system (5 marks)

iii. the lysogenic cycle. (5 marks)

 

 

  1. How can you apply aneuploids in crop improvement and genetic studies? (15 marks)

 

  1. (a) Outline the steps in specialized translocation. (5 marks) (b) Polyploids are of significant effects. Discuss. (10 marks)

 

  1. As a human geneticist, how will you diagnose sickle cell anemia and Huntington’s disease in relation to past work? (15 marks)

 

  1. Write short notes on the following: (i) Karyotype (5 marks)

(ii) Codominance (5 marks)

(iii) Dosage compensation.  (5 marks)

YOU MAY ALSO LIKE  National Open University Exam Past Question - PED 420 Saturday 26th January 2013

Related Articles

Leave a Reply

Your email address will not be published.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

Close