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  2. Isolation (microbiology) - Wikipedia

    en.wikipedia.org/wiki/Isolation_(microbiology)

    Example of gram staining on a gram positive rod. Gram staining allows for visualization of the bacteria's cell wall composition based on the color the bacteria stains after a series of staining and decolorization steps. [4] This staining process allows for the identification of gram-negative and gram positive bacteria. Gram-negative bacteria ...

  3. C-value - Wikipedia

    en.wikipedia.org/wiki/C-value

    C-value is the amount, in picograms, of DNA contained within a haploid nucleus (e.g. a gamete) or one half the amount in a diploid somatic cell of a eukaryotic organism. In some cases (notably among diploid organisms), the terms C-value and genome size are used interchangeably; however, in polyploids the C-value may represent two or more genomes contained within the same nucleus.

  4. Gram-positive bacteria - Wikipedia

    en.wikipedia.org/wiki/Gram-positive_bacteria

    Violet-stained gram-positive cocci and pink-stained gram-negative bacilli. In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall.

  5. Gram stain - Wikipedia

    en.wikipedia.org/wiki/Gram_stain

    Gram stain (Gram staining or Gram's method), is a method of staining used to classify bacterial species into two large groups: gram-positive bacteria and gram-negative bacteria. It may also be used to diagnose a fungal infection . [ 1 ]

  6. Genome size - Wikipedia

    en.wikipedia.org/wiki/Genome_size

    Genome size ranges (in base pairs) of various life forms. Genome size is the total amount of DNA contained within one copy of a single complete genome.It is typically measured in terms of mass in picograms (trillionths (10 −12) of a gram, abbreviated pg) or less frequently in daltons, or as the total number of nucleotide base pairs, usually in megabases (millions of base pairs, abbreviated ...

  7. Microbial genetics - Wikipedia

    en.wikipedia.org/wiki/Microbial_Genetics

    Natural transformation is a bacterial adaptation for DNA transfer between two cells through the intervening medium. The uptake of donor DNA and its recombinational incorporation into the recipient chromosome depends on the expression of numerous bacterial genes whose products direct this process.

  8. Rapists draw lighter sentences when DNA test backlogs delay ...

    www.aol.com/news/rapists-draw-lighter-sentences...

    A decade later, federal funding helped test the kit and in 2017, DNA matched to Frank Hampton — a serial rapist linked to several other assault investigations.

  9. Differential staining - Wikipedia

    en.wikipedia.org/wiki/Differential_staining

    The process or results are called a WBC differential. This test is useful because many diseases alter the proportion of certain white blood cells. By analyzing these differences in combination with a clinical exam and other lab tests, medical professionals can diagnose disease. One commonly recognizable use of differential staining is the Gram ...