TLS Online TPP Program

#Question id: 12421


If λ=1, then the number of females in the population is

#Unit 10. Ecological Principles
  1. Remaining constant
  2. Increasing slowly
  3. Decreasing rapidly
  4. Increasing rapidly
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TLS Online TPP Program

#Question id: 12669

#Unit 6. System Physiology – Plant

Water potential of plants under various growing conditions, and sensitivity of various physiological processes to water potential, during  water potential  0→ -1 MPa,  which of the following  physiological condition will not be seen ;

TLS Online TPP Program

#Question id: 12670

#Unit 6. System Physiology – Plant

 Changement  in the physiology or morphology of the individual is a nonpermanent  or  temporary and that can be reversed if the prevailing environmental conditions change is termed as 

TLS Online TPP Program

#Question id: 12671

#Unit 6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,

TLS Online TPP Program

#Question id: 12672

#Unit 6. System Physiology – Plant

Following are given some prediction about stress response which ultimately generate ROS;
a) Stress response activates the scavenging mechanism by ROS , these ROS is responsible for activating self-generation  mechanism by using RBOH
b) ROS have a negative effect on plant growth,  development,  and  yield
c) Almost every stress leads to the activation of ROS and its signal transduction
d) ROS indirectly induce acclimation mechanisms
Which of the following is the correct prediction about ROS activated by stress response?

TLS Online TPP Program

#Question id: 12711

#Unit 6. System Physiology – Plant

Various sensors monitor ROS levels in cells; an increase in ROS activates a signal transduction network. ROS scavenging is carried out by antioxidant molecules ____X_________and by antioxidant enzymes such as____Z_________

TLS Online TPP Program

#Question id: 12712

#Unit 6. System Physiology – Plant

ROS using respiratory burst oxidase homolog (RBOH) or NADPH  oxidase for Self- generation mechanism by some other processes , which are involved in ROS generation such as,
A) The amino-terminal cytoplasmic domain of RBOH proteins contains four serines (Ser) that can be phosphorylated by CDPKs and two EF hands that can bind calcium directly 
B) As ROS generation such as  H2O2,  by putting electron for oxidising  oxygen into the free radicals, these electron generation by oxidising NADPH and FADH2 in the cytosolic carboxy terminal of RBOH protein
C) The elevation of calcium and ROS levels during the early stages of the stress response activates protein kinases and phosphatases
D) ROS activated Ca2+ channel leads to Ca2+  influx from apoplastic space  to cytosol
Arrange the correct order of  following steps involve in ROS generation;