Posts
All the articles I've posted.
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The tradition and social functions of science
Science, today have grown on a secular materialistic basis, drawing inspiration and principles from traditional science. Science & ideas, functions.
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Detail the Watson & Crick model of DNA structure. How did it fit in the data provided by Chargaff?
The discovery of the double helix by James Watson & Francis Crick at Cambridge, in 1953, was one of the great deductive triumphs in the history of science
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Ultimate fine structure mapping of a gene or a chromosome. How it impact the study & application of Genetics
The ultimate fine structure mapping of a gene or chromosome, Information, Impact the study & application of genetics
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Does the operon concept apply to Eukaryotes? Describe a suggested mechanism for gene regulation in Eukaryotes.
The operon system has proved not be applicable in eukaryotes. One of the most popular models of gene regulation in eukaryotes is the Davidson-Britten model.
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In crosses involving given traits what are the most likely parental genotypes of Drosophila
If we wish to know the genotype of the F1's & the F2's from a dihybrid cross, a test cross may be used.
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Describe with appropriate examples the role of environment in the determination of sex
In some lower organisms, though the genetic determiners of the sex are present, the ambient environment plays a decisive role in the development of a particular sex type.
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Write short notes on Oncogenic viruses and Antigen-antibody reactions
Oncogenic viruses: Transformation by DNA & RNA viruses, Antigen-antibody reactions: Precipitin reaction, Agglutination reaction.
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Using diagrams explain the Holliday Model for the molecular mechanism of recombination
Holliday model, One model for eukaryotic DNA recombination that survives was proposed by Robin Holliday in 1964.
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Explain with clear & labelled diagrams the ways in which genes can be transferred in bacteria
Three processes in bacteria can transfer the genetic material from one cell to another: (i) Transformation (ii) Conjugation (iii) Transduction
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Discuss general causes of congenital defects & various theories of cellular aging
Causes of congenital defects : (i) Variation in chromosome morphology. Theories of cellular aging : Cellular senescence, DNA damage, Immunological theory of aging