TLS Online TPP Program

#Question id: 5026


Whatever its ultimate cause(s), the Cambrian explosion is a prime example of

#Unit 11. Evolution and Behavior
  1. mass extinction.

  2. evolutionary stasis.

  3.  adaptive radiation.

  4. A and B only

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TLS Online TPP Program

#Question id: 19844

#Unit 13. Methods in Biology

Match the following column, which correctly represent the qPCR done by three methods and measure such as;

                  COLUMN I

                    COLUMN II

A) SYBR green

i) Annealing

B) Taqman Assay

ii) Denaturation

C) Molecular beacon

iii) pH

 

iv) Amplification

 

v) Extension

TLS Online TPP Program

#Question id: 10413

#Unit 6. System Physiology – Plant

Following are certain statements are related to the effect of red and far-red light;
a) under a dense canopy much of the red light is absorbed by plant pigments, resulting in transmittance of mostly far-red light
b) Pr (red) has highest photon flux at 680 nm while Pfr (far-red) has highest photon flux at 730nm
c) Pfr far-red light–absorbing form, which is considered to be the physiologically active form of phytochrome
d) R:FR ratio is strongly affected by the presence of a canopy because chlorophyll absorbs far-red but not red light
Which one of the combinations of above statements is incorrect?

TLS Online TPP Program

#Question id: 8704

#Unit 9. Diversity of Life Forms

To apply the principle of maximum parsimony to construction of a phylogenetic tree, ________.

TLS Online TPP Program

#Question id: 15338

#Unit 4. Cell Communication and Cell Signaling

Which cell generated on the receipt of SCF/c-Kit signaling lose the capacity for extensive self-renewal, but retain the potential to differentiate into several different hematopoietic lineages and also transiently express the molecule CD34?

TLS Online TPP Program

#Question id: 12643

#Unit 6. System Physiology – Plant

Which of the following is the first polypeptide hormone discovered in plants?