Biology, 19.10.2019 10:10 DepressionCentral
What base pairs do dna and rna share, and what is different?
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Biology, 21.06.2019 20:00
You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip.nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule.true/false
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Biology, 21.06.2019 23:30
The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical
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Biology, 22.06.2019 07:30
The arrows indicate the direction of wind flow. which place experiences monsoons?
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Biology, 22.06.2019 15:30
Modern computers can store about as much information as the human brain. true false its false i took the test
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What base pairs do dna and rna share, and what is different?...
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