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TLS Online TPP Program

#Question id: 3944

One way to tell if RNA polymerase II is in the process of transcribing an mRNA is to:

#Unit 3. Fundamental Processes

  1. check for the presence of a repeated 7-amino acid sequence at the C-terminal domain.

  2. check for phosphorylation at the C-terminal domain.

  3. both a and b

  4. neither a nor b

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TLS Online TPP Program

#Question id: 28575

#Unit 5. Developmental Biology

 β-catenin activation able to initiate ovary forming gene and at the same time it prevent the activation of those gene which crucial for testis determination?
TLS Online TPP Program

#Question id: 1367

#Unit 4. Cell Communication and Cell Signaling

Match the following junctions (column A) with their intracellular adaptors (column B).

Column A

Column B

A. Adherens junctions

I. Plectin, dystonin

B. Desmosomes

II. ZO-1,2,3

C. Hemidesmosomes

III. Catenins, vinculin

D. Gap junctions

IV. Plakoglobin, plakophilins

TLS Online TPP Program

#Question id: 31095

#Unit 4. Cell Communication and Cell Signaling

Ca2+ is released from the mitochondrial matrix into the intermembrane space by:
TLS Online TPP Program

#Question id: 14837

#Unit 5. Developmental Biology

Each of the three major strategies of cell specification summarized in TABLE  offers a different way of providing each embryonic cell with a set of determinants (often transcription factors) that will activate specific genes and cause the cell to differentiate into a particular cell type:

Choose right combinations;
TLS Online TPP Program

#Question id: 1535

#Unit 4. Cell Communication and Cell Signaling

Following statements are regarding to cancer stem cell (CSCs).

a. A representative subpopulation of cancer cells with peculiar molecular aspects that resemble some of those typical of normal stem cells.

b. These cells are capable of replenishing the repertoire of identical cancer cells.

c. These cells cannot create heterogeneous progeny that differentiate into more mature cells.

d. These cells show extraordinary proliferative potential.

e. These cells show excessive programmed cell death.

Which of the following combination is correct?