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explain the staphylococcus - characteristics of bacteriastaphylococcus - it is gram positive nonsporulating facultative anaerobic cocci present in
explain the bacillus - characteristics of bacteriabacillus - it is gram positive endospore former obligate aerobic or facultative aerobic rods
explain the pseudomonas - characteristics of bacteriapseudomonas are aerobic gram negative straight or slightly curved rods that are motile by polar
explain the proteus - characteristics of bacteriait is gram negative non-sporulating rod which is characterized by rapid motility peritrichous
explain the klebsiella - characteristics of bacteriait is gram negative non-sporulating non-motile and non-pigmented rod which is commonly found in
explain the escherichia - characteristics of bacteriait belongs to order enterobacteriales it is the best-studied organism present in the colon of
explain the disadvantages of fixationfixation has following disadvantages also these are highlighted herewithi it distorts the cells appearanceii
define the chemical fixation methodhere chemical fixatives containing ethanol acetic acid and formaldehyde etc penetrates the cell and inactivates
explain the heat fixation methodthis is the usual method here bacteria is fixed by gentle heating of air-dried bacterial film which results in
what do we mean by fixationfixation is the process of preserving internal and external structures of microorganisms it leads to the killing of
define method used for capsular staining - anthony staining methodanother method used for capsular staining is anthony staining method devised by ee
is it more indicated for a geneticist desiring to map the x chromosome of the mother of a given family the researcher does not have access to her dna
why capsulate staining is difficultcapsule staining is difficult because capsular material is soluble in water and may be dislodged or removed during
define capsule staining anthony staining methoda rigid well-organized gelatinous layer called capsule is present outside the cell wall of many
is it possible that an x chromosome of a woman can have come from her fatherit isnt only possible that an x chromosome of a woman is from her father
concerning the sex chromosomes of the xy system which type of gamete do the male and the female individuals respectively producean individual of the
explain the requirements of special stainsspecial stains are required to make spores clearly visible different techniques like negative staining
explain the position of the endosporeendospore cannot be stained by ordinary methods such as simple staining and gram staining because these dyes do
what are the homologous and the heterologous portions of the human sex chromosomesthe homologous portion is that in which there are genes having
what is an endosporean endospore is a specialized highly resistant dormant structure formed within the vegetative cell of some bacteria eg bacillus
how is the genetic determination of sex established in humansin the diploid genome of the human beings there are 46 chromosomes 44 of them are
is crossing over important for the diversity of biological evolutionthe sexual reproduction and the recombination of linked genes crossing over are
how can the concept of recombination frequency be used in genetic mappingthe genetic mapping is the determination of the location of the genes in a
what is a centimorganthe centimorgan or the recombination unit by convention is a distance between two linked genes that corresponds to 1 of
why does the recombination frequency of genes vary with the distance between them in the chromosomethe farther the distance among the loci of two