EGTA [ethylene glycol-bis(b-aminoethyl ether) N,N,N′,N′-tetraacetic acid], a compound that can  

a. Introduce Ca2+ 

b. chelate Ca2+ 

c. prevents Ca2+ uptake by cells 

d. inhibits root gravitropism

Which of the following is correct

TLS Online TPP Program

#Question id: 15711

#Unit 12. Applied Biology

For the regeneration of a whole plant from a cell or callus tissue, there should be differentiation leading to shoot bud or embryo formation. This may occur through 

TLS Online TPP Program

#Question id: 1721

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of follicular dendritic cells?

TLS Online TPP Program

#Question id: 3400

#Unit 11. Evolution and Behavior

Which of the following influence effective population size?

a. Sex ratio

b. variation between individuals in reproductive success

c. Fluctuations in population size

d. Small breeding group

TLS Online TPP Program

#Question id: 14687

#Unit 13. Methods in Biology

Find the probability of drawing one rupee coin from a purse with two compartments one of which contains 3 fifty paisa coins and 2 one-rupee coins and the other contains 2 fifty paisa coins and 3 one rupee coins.

TLS Online TPP Program

#Question id: 10444

#Unit 6. System Physiology – Plant

Which protein is involved in the crosstock signalling with the phytochrome and initiates photomorphogenesis?