Following are given some characteristics of Signals from Sunlight;

a) phyA is rapidly degraded as Pfr and controls plant responses to VLFRs and the far-red HIRs

b) An important role for phyB in de-etiolation

c) phyA must be the photoreceptor involved in the perception of continuous far-red light because its Pfr form is stable

d) Responses mediated by phyD and phyE include petiole and internode elongation and the control of flowering time

Which of the following combinations from the above statements is correct?

TLS Online TPP Program

#Question id: 14754

#Unit 6. System Physiology – Plant

Plant cells have several internal compartments, each of which can differ in its ionic composition. The cytosol and the vacuole are the most important intracellular compartments that determine the ionic relations of plant cells, Ion concentrations in the cytosol and the vacuole are controlled by passive (dashed arrows) and active (solid arrows) transport processes

  

Which of the following statement INCORRECT from the above figure;

TLS Online TPP Program

#Question id: 14755

#Unit 6. System Physiology – Plant

Any active transport mechanism that results in the movement of a net electric charge will tend to move the membrane potential away from the value predicted by the Goldman equation. Such a transport mechanism is called

TLS Online TPP Program

#Question id: 14756

#Unit 5. Developmental Biology

A series of mitotic divisions whereby the enormous volume of egg cytoplasm is divided into numerous smaller, nucleated cells. These cleavage-stage cells are called as:

TLS Online TPP Program

#Question id: 14757

#Unit 5. Developmental Biology

Which of the following events are responsible for transition from fertilization to cleavage ?

TLS Online TPP Program

#Question id: 14758

#Unit 5. Developmental Biology

If contractile ring is disrupted during cleavage, which of the following process stop?

TLS Online TPP Program

#Question id: 14759

#Unit 5. Developmental Biology

Which of the following mechanical agent creates cleavage furrow during cleavage?