Ultrastructural studies have led to the characterization of two distinctive cytological

pathways of PCD in plants;

I) Vacuolar-type PCD

II) Hypersensitive response-type (HR-type) PCD

a) cytosol and all its organelles, including the plasma membrane, are completely brokendown

b) The vacuole loses water, resulting in marked cell shrinkage, contraction from the cell wall,

and nuclear DNA degradation

c) PCD occurs in leaves in response to microbial attack

d) cell wall is either partially or completely digested as well, as in endosperm tissue

e) Continued water loss from the cytosol leads to the breakdown of the plasma membrane

and the release of residual cellular contents into the apoplast

Given characterization of PCD pathway match with its type PCD?

TLS Online TPP Program

#Question id: 19457

#SCPH01 Biochemistry

Which microscopy can be used for viewing live cells and unstained tissues?

1. Fluorescence microscopy

2. Phase contrast microscopy

3. Dark field microscopy

4. Differential interference microscopy

5. Confocal microscopy

Which of the above combinations of microscopy is correct?

TLS Online TPP Program

#Question id: 14150

#SCPH01 Biochemistry

Which of the following statement is incorrect about BLOSUM?

TLS Online TPP Program

#Question id: 7307

#SCPH06 I Botany

Which of the following statements regarding flowering plants is correct?

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#Question id: 10961

#I Life Science/ Life Sciences Group – I-V

Over the past 12 weeks, a 75-year-old man with a moderate aortic stenosis has developed shortness of breath and chest pains during exertion. He appears pale. Test of his stool for blood is positive. Laboratory studies show the following: hemoglobin 7.2 g/dL, and mean corpuscular volume 75. A blood smear shows microcytic, hypochromic erythrocytes. Which of the following is the most likely diagnosis?

TLS Online TPP Program

#Question id: 14691

#SCPH06 I Botany

In a shooting competition, the probability of hitting the target by A is 2/5, by B is 2/3 and by C is 3/5. If all of them fire independently at the same target, calculate the probability that only one of them will hit the target.