The most common antibiotics used are penicillin and streptomycin, which inhibit a wide spectrum of Gram-positive and Gram-negative bacteria. Penicillin acts by inhibiting the last step in bacterial cell wall synthesis while streptomycin blocks protein synthesis.

TLS Online TPP Program

#Id: 9170

#Unit 11. Evolution and Behavior

The overall change in allelic frequency

TLS Online TPP Program

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#Unit 3. Fundamental Processes

PML nuclear bodies are also sites of post-translational modification of proteins through the addition of a small, ubiquitin-like protein called SUMO1

TLS Online TPP Program

#Id: 2632

#Unit 13. Methods in Biology

The principle behind the S1 mapping method is to label a single stranded DNA probe that can hybridize only to the transcript of interest. 

TLS Online TPP Program

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#Unit 3. Fundamental Processes

RNA polymerase starts most transcripts with an A, and that ribonucleotide binds the template nucleotide (T) with only two hydrogen bonds (as opposed to the three between C and G).

TLS Online TPP Program

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#Unit 2. Cellular Organization

Individual nucleosomes can be obtained by treating chromatin with the endonuclease micrococcal nuclease (MNase), which cuts the DNA at linker DNA.