RISHAD K A

biology zoology rishad k a ictv baltimore classification lht system of viral classifica cultivation of virus size of the viruses history of virus viroogy enveloped virus rna virus dna virus classification of virus introduction to viruses structure of virus virus lesch-nyhan syndrome salvage pathway allopurinol gout adenosine deaminase scid nitrogen bases rna dna molecular biology biochemistry guanine nucleotide xanthine hypoxanthine nucleotidase purine nucleotide degradation pyrimidine degradation degradation of nucleic acids modern trends in taxonomy numerical taxonomy rishad ka calicut university taxonomy and systematics rishad biology systematics calicut university new trends in taxonomy cytotaxonomy chemotaxonomy serotaxonomy taxonomy : rishad