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TLS Online TPP Program

#Question id: 7312

Following statements regarding to the classes of genes that regulate floral development:

A.  Floral organ identity genes directly control floral identity. The proteins encoded by these genes are transcription factors that likely control the expression of other genes whose products are involved in the formation and/or function of floral organs.

B.  Cadastral genes act as spatial regulators of the floral organ identity genes by setting boundaries for their expression.

C.   Meristem identity genes are necessary for the initial induction of the organ identity genes. These genes are the positive regulators of floral organ identity.

D.  Cadastral genes act as negative regulators of the floral organ identity genes by inhibits their expression.

E.   Meristem identity genes are the negative regulators of floral organ identity genes.

Which of the above statements are true?

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

#Question id: 14762

#Unit 2. Cellular Organization

Following statements are regarding to determination of filament formation by actin concentration.
A. The critical concentration (Cc) is the concentration at which G-actin monomers are in equilibrium with actin filaments.
B. At monomer concentrations below the Cc, no polymerization takes place. 
C. When polymerization is induced at monomer concentrations above the Cc, filaments assemble until steady state is reached and the monomer concentration falls to Cc.
D. At steady state, the concentration of monomeric actin below the critical concentration.
Which of the following statements promotes spontaneous filament assembly?
TLS Online TPP Program

#Question id: 5346

#Unit 8. Inheritance Biology

The following typical pedigree illustrates the key point that affected children are born to unaffected parents: Which of the following is correct statement?
TLS Online TPP Program

#Question id: 348

#Unit 1. Molecules and their Interaction Relevant to Biology

Sulfur is in the same column of the periodic table as oxygen, but has electronegativity similar to carbon. Compared to water molecules, molecules of H2S will ________.
TLS Online TPP Program

#Question id: 8721

#Unit 9. Diversity of Life Forms

Based on cladistics, which eukaryotic kingdom is polyphyletic and, therefore, unacceptable?
TLS Online TPP Program

#Question id: 12394

#Unit 6. System Physiology – Plant

 Which one of the following fungal phytotoxin, stimulates both rapid proton extrusion and transient growth in stem and coleoptile sections?