TLS Online TPP Program

#Question id: 15775


When a multipotent stem cell divides asymmetrically, its maturing daughter cell often goes through a transition stage, called as
A. Progenitor cell .
B. Transit-amplifying cell.
C. Adult stem cell
D. Totipotent precursor cell

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

#Question id: 10569

#Unit 6. System Physiology – Plant

Plants that grow in saline environments, called

TLS Online TPP Program

#Question id: 714

#Unit 1. Molecules and their Interaction Relevant to Biology

What is  the length of a polypeptide with 100 amino acids residue in a single contiguous alpha helix?

TLS Online TPP Program

#Question id: 10377

#Unit 6. System Physiology – Plant

Nod factors are recognized by the Nod factor receptor (NFR) in legumes, Upon binding to Nod factors, the NFR heterodimer initiates two main separate processes mediated by SYMRK such as;

a) A signaling pathway that facilitates the infection process itself

b) Activation of the symbiosis receptor-like kinase (SYMRK)

c) Activating an extracellular domain that includes a leucine rich repeat (LRR) region and an intracellular protein kinase domain

d) The activation of a set of genes that regulate the formation of root nodules

Which of the following are the two main separate processes of NFR heterodimer?

TLS Online TPP Program

#Question id: 13205

#Unit 6. System Physiology – Plant

The mechanisms that regulate the loading of sucrose from the apoplast to the sieve elements by the sucrose–H+ symporter await characterization. Possible regulatory factors include the following:
a) The solute potential or, more likely, the turgor pressure of the sieve elements
b) Sucrose concentration in the apoplast
c) The available number of symporter protein molecules
Which one of the mechanism that involve to regulate the loading of sucrose?

TLS Online TPP Program

#Question id: 23168

#Unit 13. Methods in Biology

What are the advantages of using secondary antibodies in indirect immunofluorescence?
1.  It makes easy to choose a different conjugate no matter the primary antibody
2. Enhance detection by localizing more conjugate at the antigen
3. Conjugation of fluorophore can interfere with the primary antibody’s recognition of the antigen
Which of the following options is correct?