A complete Guide for Students
Gram +ve bacteria Gram -ve bacteria 1. On the basis of Gram stain they attain purple colour 1. They attain Red colour. 2. Total cell wall : Peptidoglycan (80%), Lipoprotein(20%) 2. Peptidoglycan (20%), Lipoprotein(80%) 3. Thicker cell wall 3. Thinner cell wall but more complex 4. Sensitive to …
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Example of Gene Regulation at steps after Transcription initiation. Where translation is coupled with transcription to achieve regulation of an operon through secondary RNA structure. To which process the figure given below is related? trp Operon is a Repressible Operon trp operon, just like many other operons for amino acid biosynthesis, responds to the cellular …
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The term Echinodermata (Gr., echinos= spiny, derma=skin), was coined by Jacob Klein Echinoderms are triploblastic, radially symmetrical (adult) often pentamerous, larva with bilateral symmetry, sessile or creeping at bottoms. Echinoderms are exclusively marine deuterostomes. All echinoderms are benthic ; bottom dwellers (except few pelagic sea cucumbers), mostly free living except sea lilies. Spiny skinned; enterocoelic …
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Phylum Mollusca : General Characteristics and Classification (L., mollis=soft) Second largest phylum in number ; first being arthropoda Malacology : Study of Mollusca Conchology : Study of shell of Mollusca Most molluscs are marine, some freshwater, some terrestrial. Most molluscs are herbivorous but some (e.g. squid) are active predators. Triploblastic, soft-bodied animals with bilateral symmetry …
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Replication of Animal Virus Replication (Reproduction) of virus takes place in cell; cytoplasm, nucleus or both. Uncoating of virus, its nucleic acid replication and the assembly of viral protein and nucleic acid components occur correspondingly. Adsorption: It involves the attachment of virus on cell membrane which is specific and irreversible. Molecular entities on the surface …
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CONNECTING LINKS OF BIOLOGICAL WORLD Actinomycetes Bacteria and Fungi Ainktozoan Protochordates and Vertebrata Archaeopteryx (bird) Birds and Reptiles Balanoglossus (hemichordate) Echinoderms and Chordates Chimaera (Rat or Rabbit fish) Bony and cartilaginous fishes Coelocanthus Fish and Land vertebrates Ctenophora Coelenterates and Platyhelminthes Club moss Bryophytes and Pteridophytes Cycas Pteridophytes and Gymnosperm Duck billed platypus, Spiny ant …
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Rhabdos (greek) = rod Mononegavirales order negative, ss, monopartite RNA (11.9 kb) viruses. capsid is roughly bullet shaped and about 75 nm wide and 180 nm long. enveloped viruses with large protein projections Group V: (-)sense RNA Viruses Order Mononegavirales Family Genus Type Species Hosts Rhabdoviridae Vesiculovirus Vesicular stomatitis Indiana virus Vertebrates Lyssavirus (Greek, …
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Gr. Arthos : Jointed podos: legs Animals with jointed legs Largest phylum in Animal kingdom in both number of taxa and biomass Most successful group of animals due to chitinous skeleton. Bilaterally symmetrical, triploblastic, metamerically segmented and tagmatization Segments are not separated as in annelids; external segmentation is present. Organ system level …
Read More Phylum Arthropoda : General Characteristics and ClassificationInfection of soft tissues associated with pus formation Pus consists PMNs, bacteria, fibrin and other body fluids May be endogenous or exogenous Endogenous: source of infection commensal flora, for example, abdominal surgical wound infection from normal flora of bowel Exogenous: source of infection outside the body, for example burn infection Possible pathogens most commonly isolated …
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Bacterial resistance to drugs is a condition in which the bacteria that were earlier susceptible to antibiotics develop resistance against the same antibiotics and are not susceptible to the action of these antibiotics. Antibiotic resistance is seen more commonly in hospital acquired infections than in community-acquired infections due to widespread use of antibiotics in hospitals …
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