TLS Online TPP Program

#Question id: 16480


What are primary cell cultures 

#Unit 12. Applied Biology
  1. First subculturing
  2. Freshely isolated cells
  3. Second subculturing
  4. Protoplast cells
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TLS Online TPP Program

#Question id: 10959

#Unit 7. System Physiology – Animal

 Which of the following would best explain a prolonged bleeding time test?

TLS Online TPP Program

#Question id: 11287

#Unit 10. Ecological Principles

What is value of evenness in community 3 and 4 respectively?


TLS Online TPP Program

#Question id: 12391

#Unit 6. System Physiology – Plant

Which of the following processed are involve in cell enlargement in plant?
a) Osmotic uptake of water across the plasma membrane is driven by the gradient in water potential (∆Yw)
b) Turgor pressure builds up because of the rigidity of the cell wall
c) Biochemical wall loosening occurs, allowing the cell to expand in response to turgor pressure

TLS Online TPP Program

#Question id: 7304

#Unit 5. Developmental Biology

Which one of the following will be observed when auxin to cytokinin ratio is increased in the culture medium during organogenesis from tobacco pith callus?

TLS Online TPP Program

#Question id: 12714

#Unit 6. System Physiology – Plant

Physiological and biochemical perturbations in plants caused by fluctuations in the abiotic environment, given column I with environmental factor and with its effects in the form of primary effects  in column II and secondary effects  in column III

 

            COLUMN I 

      (environmental factor )

 

              COLUMN II

           (primary effects)

 

            COLUMN III

        (secondary effects)

 

A) Water deficit

 

 

i) Hypoxia,  Anoxia

 

a) Membrane dysfunction

 

B) High temperature

 

 

ii) ROS production

 

b) Reduced cellular and metabolic activities,

Leaf abscission,

Ion cytotoxicity and Cavitation

 

 

C) Trace element toxicity

 

 

iii) Photo inhibition

 

c) Reduced respiration,    

Fermentative metabolism,       Inadequate ATP production ,

 ROS production and

 Stomatal closure

 

D) Flooding and soil compaction

 

 

iv) Membrane destabilization

 

d) Inhibition of PSII repair

 

E) Chilling

 

v) Cell dehydration and Hydraulic resistance

 

e) Disruption of metabolism

 

F) High light intensity

 

 

 

f) Photosynthetic and respiratory inhibition, ROS production

 


Find out the correct combination of given above column;