Pyranose rings are usually most stable when the ring adopts a ________ conformation with the bulkiest ring substituents in ________ positions.

TLS Online TPP Program

#Question id: 3919

#Unit 3. Fundamental Processes

Most of the RNA polymerase activity in eukaryotic cells occurs in the

TLS Online TPP Program

#Question id: 2697

#Unit 2. Cellular Organization

Which of the following is an example of an inverted repeat?

TLS Online TPP Program

#Question id: 5522

#Unit 5. Developmental Biology

In reptiles, birds, and mammals, mesoderm is made by invagination and involution into the

TLS Online TPP Program

#Question id: 31098

#Unit 2. Cellular Organization

Which of the following phase can be reduced or abolished entirely by adding premade nuclei?

TLS Online TPP Program

#Question id: 4518

#Unit 3. Fundamental Processes

The sequence of transcriptional activation events at a typical Pol II promote

I- Mediator facilitates the binding of TBP (or TFIID) and TFIIB, and the other basal transcription factors and Pol II then bind.

II- Activators bind the DNA.

III-The activators recruit the histone modification/nucleosome remodeling complexes and a coactivator such as Media.

IV- Phosphorylation of the carboxyl-terminal domain (CTD) of Pol II leads to transcription initiation.