National Open University Exam Past Question BIO 305 March/April 2014

                                                  

                                                               National Open University of Nigeria

                                                            14-16 Ahmadu Bello Way, Victoria Island Lagos 

                                                                      School of science and technology

                                                                      March/April 2014 Examination 

                  ^{COURSE CODE: BIO 305}

                  ^{COURSE TITTLE: MOLECULAR BIOLOGY}

                  ^{TIME ALLOWED: 2hrs}

                   ^{Instructions: ANSWER QUESTION 1 AND ANY OTHER 3 QUESTIONS}

 

^{1.ai. what is molecular biology .}

  ^{ii.outline the relationship of molecular biology to other biological sciences} 

^{bi. list the major components of a nucleotide}

  ^{ii. describe how hormones control gene-expression}

^{2ai. enumerate the importance of genes in heredity} 

 ^{ii. ecscherichia coli is useful in molecular biology discuss}

^{bi.what did you understand by the term gene-expression} 

 ^{ii. Outline the characteristics of genetic code.}

^{3ai. what is catabolism?}

 ^{ii. list the important features of glycolysis} 

^{b. describe in details any two methods of determining DNA sequences}

^{4ai. define DNA}

  ^{ii. write short note on each of the following}

^{I. mRNA}

^{ii. tRNA}

^{iii. rRNA}

^{bi. what are the roles of DNA and RNA ?}

^{ii. Describe the central dogma.}

^{5ai. what is nucleic acid hybridization ?}

 ^{ii. write short note on the following} 

^{a. cistron} 

^{b. muton}

^{c. recon}

^{bi. list the stages involved in breaking down of glucose} 

 ^{ii. describe the process of oxidative phosphorylation} 

^{6ai.Describe the various steps involve in the process of chain elongation stage during protein synthesis}

 ^{ii. what is DNA sequencing ?}

^{bi. what did you understand by the term chromosomes} 

 ^{ii. Ecsherichia coli are useful in molecular biology discuss}


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