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TLS Online TPP Program

#Question id: 7234

Studies from the sea urchin developmental biology, Eric Davidson’s group envisions a network involving cis regulatory elements (such as promoters and enhancers) in a logic circuit connected to one another by transcription factors. Following statements are given regarding to this network.

A. The network receives its first inputs from transcription factors in the egg cytoplasm.

B. The network self-assembles from the ability of the maternal transcription factors to recognize cis-regulatory elements of particular genes that encode other transcription factors.

C. The new set of transcription factors activate autocrine signaling pathways that activate specific transcription factors in neighboring cells.

D. This network of interconnections among genes that specify cell types known as a gene regulatory network (GRN).

Which of the following statements are correct?

#Unit 5. Developmental Biology
  1. A, B and C
  2. B and D
  3. A, B and D
  4. A and D
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TLS Online TPP Program

#Question id: 36

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is/are the S-enantiomer of alanine?
TLS Online TPP Program

#Question id: 1087

#Unit 4. Cell Communication and Cell Signaling

Scientists have found that extracellular matrix components may induce specific gene expression in embryonic tissues such as the liver and testes. For this to happen, there must be direct communication between the extracellular matrix and the developing cells. Which kind of transmembrane protein would most likely be involved in this kind of induction?
TLS Online TPP Program

#Question id: 494

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements about the pentose phosphate pathway is correct?
TLS Online TPP Program

#Question id: 16324

#Unit 7. System Physiology – Animal

Symptoms of Severe Anxiety:
TLS Online TPP Program

#Question id: 19464

#Unit 13. Methods in Biology

Which is the common fixative agent that crosslinks amino groups on adjacent molecules