Transformation takes place when a bacterium takes up DNA from the medium in which it is growing.

TLS Online TPP Program

#Id: 6466

#Unit 3. Fundamental Processes

Eukaryotic transcription is most often under positive regulation: A transcription factor is provided under tissue-specific control to activate a promoter or set of promoters that contain a common target sequence.

TLS Online TPP Program

#Id: 761

#Unit 3. Fundamental Processes

Sigma factor ensures that bacterial RNA polymerase initiates transcription from specific sites, also reduces binding to nonspecific sequences.

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#Id: 7866

#Unit 1. Molecules and their Interaction Relevant to Biology

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#Id: 9521

#Unit 6. System Physiology – Plant

The nematode‐secreted peptide 16D10, which was first isolated from the soybean root‐knot nematode Meloidogyne incognita, interacts with a plant regulatory protein, stimulates root growth, and binds in planta to two SCARECROW‐like transcription factors.

TLS Online TPP Program

#Id: 7550

#Unit 6. System Physiology – Plant

In the absence of gibberellin, the DELLA proteins positively regulate GID1, GA20ox, and GA3ox (plus signs), and negatively regulate GA2ox (minus sign). Conversely, both bioactive gibberellin and the GID1 receptor enhance DELLA repressor degradation (plus signs), while GA2ox blocks DELLA repressor degradation (minus signs).