Ste20 serves as a MAPKKK kinase.

TLS Online TPP Program

#Id: 6756

#Unit 3. Fundamental Processes

Method for determining mRNA half-lives.

RNA polymerase II transcription is shut down, either by a drug or a temperature shift in strains with a temperature sensitive mutation in a Pol II gene. The levels of specific mRNAs are determined by northern blot or RT-PCR at various times following shutdown.

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#Id: 6363

#Unit 2. Cellular Organization

There are 4 genes (I, Z, Y, A), 2 Promoters and 3 lac operators in Lac operon

The major O1 lac operator lies adjacent to promoter

The O1 operator extends from position -5 just upstream of the mRNA start point to position +21 within the transcription unit.

TLS Online TPP Program

#Id: 1674

#Unit 4. Cell Communication and Cell Signaling

Recombinant Vector Vaccines Recombinant vectors maintain the advantages of live attenuated vaccines while avoiding this major disadvantage. Recombinant vector- Covishield vaccine, Ebola (in clinical testing)

TLS Online TPP Program

#Id: 778

#Unit 3. Fundamental Processes

Termination requires that all hydrogen bonds holding the RNA–DNA hybrid together must be broken, after which the DNA duplex reforms.

TLS Online TPP Program

#Id: 7149

#Unit 6. System Physiology – Plant

In the local defense response, there are two ways of short-distance transmission of the JA signal. First, the systemin produced by the wounding acts as a signaling molecule, which is transmitted to the adjacent site through the apoplast and phloem to activate the JA cascade reaction pathway. Second, JA and JA-Ile induced by systemin act as signals and are transported to adjacent sites for defensive responses