According to a recent model, the balance between the activities of ABA and gibberellin in seeds is under both developmental and environmental control such as

a) early stages of seed development, ABA sensitivity is high and gibberellin sensitivity is low, which favors dormancy over germination

b) Later in seed development, ABA sensitivity declines and gibberellin sensitivity increases, favoring germination.

c) Environmental factors such as temperature  and light affect the ABA:GA ratios by activation of the  NCED and GA2ox enzyme, which promotes seed dormancy

d) During an Ambient environment, activation of GA3ox and CYP707A2 inducing dormancy

Which of the following combination  from the above statements is incorrect?

TLS Online TPP Program

#Question id: 1292

#Unit 4. Cell Communication and Cell Signaling

Heparan sulfate, an example of a(n) _____________, aids in the activation of ____________.

TLS Online TPP Program

#Question id: 2675

#Unit 2. Cellular Organization

Which of the following statements regarding the trp operon is true?

TLS Online TPP Program

#Question id: 1174

#Unit 4. Cell Communication and Cell Signaling

Binding of erythropoietin to its extracellular receptor engages which of the following signaling pathways?

a. JAK/STAT                                                  b. Ras/MAP kinase

c. PI-3 kinase                                                  d. TGF-β

TLS Online TPP Program

#Question id: 31267

#Unit 4. Cell Communication and Cell Signaling

Which of the following example belongs to the tumor-suppressor gene products?

TLS Online TPP Program

#Question id: 1628

#Unit 4. Cell Communication and Cell Signaling

The classical and alternative pathways meet at complement component: