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TLS Online TPP Program

#Question id: 12206

Neonates that are kept in 100% oxygen incubators for several days become blind when they are removed from the incubator, a condition referred to as retrolental fibroplasia. What is the explanation for the loss of sight?

#Unit 7. System Physiology – Animal
  1. The high concentration of oxygen stimulates the growth of fibrous tissue into the retina
  2. The high concentration of oxygen causes rupture of blood vessels in the retina, resulting in fibrous infiltration of the vitreous humor
  3. The high concentration of oxygen retards the growth of blood vessels in the retina, but when the oxygen therapy is stopped, the fall in oxygen concentration stimulates an overgrowth of blood vessels in the retina and vitreous humor, which later become densely fibrous and block the light from the pupil
  4. The high concentration of oxygen destroys the retinal neurons
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TLS Online TPP Program

#Question id: 2222

#Unit 2. Cellular Organization

The solutions in the arms of a U-tube are separated at the bottom of the tube by a selectively permeable membrane. The membrane is permeable to sodium chloride but not to glucose. Side A is filled with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side B is filled with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same.

In the U-tube experiment illustrated above, which of the following statements correctly describes side B at equilibrium?
TLS Online TPP Program

#Question id: 23732

#Unit 8. Inheritance Biology

According to this figure, which of the following statements is correct;
                 
a) The genotype affects plant weight, but the environmental conditions determine which genotype produces the heavier plant.
b) The environmental conditions affects plant weight, but the alleles determine which type of genotype produces the heavier plant.
c) It shows the Genetic–environmental interaction variance
d) It shows only environmental variance (Ve)
TLS Online TPP Program

#Question id: 20333

#Unit 4. Cell Communication and Cell Signaling

Choose true statements about Ax21-mediated quorum sensing;
a. It is a highly conserved sulfated peptide secreted by Xanthomonas oryzae.
b. Ax21 is sulfated by RaxST, which is a putative tyrosine sulfotransferase.
c. Sulfated Ax21 is secreted via the RaxABC type I secretion system
d. Sulfated Ax21 secreted is recognized by the rice XA21 receptor.
TLS Online TPP Program

#Question id: 12524

#Unit 6. System Physiology – Plant

PYR/PYL/RCAR  receptors  to permit or enhance interaction with PP2C and thereby repress PP2C phosphatase activity. This releases SnRK2 kinases from inhibition and allow to performing various function such as;
a) phosphorylating transcription factors that bind ABA Response Elements to inhibits the ABA responsive gene expression 
b) Allow phosphorylation  ion channels for regulating  stomatal aperture 
c) phosphorylating transcription factors that bind ABA Response Elements to activates the ABA responsive gene expression
which of the following is the correct statement  of  kinase activity ?
TLS Online TPP Program

#Question id: 11877

#General Aptitude

What is the LCM of 1.08, 0.36 and 0.9