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define the agar shake tube methodthe agar shake tube method is useful for isolation of anaerobic microorganisms what are anaerobic microorganisms you
explain the disadvantages of colonies obtained at different dilution1 heat sensitive microorganisms may be damaged by melted agar giving low viable
define advantages of colonies obtained at different dilution1 as colonies grow both on the surface and beneath the agar surface so aerobes
explain the pour plate methodisolated colonies can also be obtained by pour plate method the method involves mixing of small volume of microbial
explain advantages and disadvantages of spread plate methodthe advantages and disadvantages of spread plate method are highlighted
define the streak plate method - pure culture techniquesthe method was developed by loeffler and gaffkey in the laboratory of robert koch the streak
explain the plating method - pure culture techniquesplating method is one of the commonly employed methods for getting a pure culture the
what are pure culture techniquesmicroorganisms can be isolated from various natural environments like soil food water sewage decomposing matter and
explain pure culture techniqueswe learnt the techniques involved in sub-culturing ie the process involved in transfer of culture from one medium to
explain the precautions for sub-culturing of a culture1 sterilization of inoculating wire before and after the transfer is a must sterilized wire
explain procedure for sub-culturing of a culturenow carry out the exercise following the steps given herewith1 sterilize the inoculating loop and
explain transfer from solid culture to liquid mediathe steps involved in this technique are included herewith1 sterilized inoculating loop or needle
explain the transfer from liquid medium to solid mediahere the steps involved include1 inoculating loop is sterilized by incineration and allowed to
explain transfer of culture from one liquid media to another liquid media1 inoculating loop is to be held in the right hand it is sterilized by
explain the meaning of transfer of culturetransfer of culture can be done from one liquid media to another liquid media or from liquid to solid media
explain the aseptic technique - sub culturingaseptic technique is a series of procedures used to prevent contamination of cultures and sterile
explain the sub-culturingmicrobiological studies require microorganisms in pure form ie a single type of microorganisms should be present in a
explain the techniques of culturingin the last practical we learnt how to prepare culture media this practical has been introduced to make you aware
what is genegene is a sequence of dna nucleotides that codifies the production of a
why do most of plants present opposite phyllotaxisthe phyllotaxis is the way that leaves are arranged on shoots most of plants have opposite
how do the plants classify according to their photoperiodism-based floweringaccording to their photoperiodism-based the flowering plants classify as
explain the procedure for preparation of culture medianow carry out the exercise following the steps given herewith1 to prepare potato dextrose
what is critical photoperiod and how can the critical photoperiod relate to flowering be experimentally determinedcritical photoperiod is the limit
precautions for preparation of selective and differential medium1 dissolve ingredients one by one2 check and set the medium to appropriate ph3
how does photoperiodism affect the flowering of some plantsthe flowering is an easy and typical to observe example of photoperiodism most of