Biology, 24.03.2021 19:10 austinmiller3030
What the definition of reproductive cycle
Answers: 1
Biology, 21.06.2019 20:00, skylex
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 23:00, tommyaberman
Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution
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Biology, 22.06.2019 13:10, monithebtslover01
Which of the following is not a benefit of genetically modified foods? a. pest-resistant crops b. herbicide-resistant crops c. plants that do not require water?
Answers: 2
What the definition of reproductive cycle...
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