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TLS Online TPP Program

#Question id: 18802

Instead of Propidium iodide-labeled cell an alternate compound can be used which is Carboxyfluorescein succinimidyl ester (CFSE) in CFSE labeling amount of fluorescence emitted is cut in half each time the cell divides. The nature of this compound is

#Unit 13. Methods in Biology
  1. non-toxic to cells hence retained till many cycles
  2. toxic to cells hence retained till many cycles
  3. non-toxic to cells hence retained only at single cycles
  4. toxic to cells hence retained only in single cycles
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TLS Online TPP Program

#Question id: 15198

#Unit 8. Inheritance Biology

In the following pedigree shows the segregation of two different recessive traits.
Assuming that both traits are 10 cM apart on the X chromosome, what is the probability that a female child will have both recessive traits?
TLS Online TPP Program

#Question id: 23145

#Unit 13. Methods in Biology

A chemical is said to be fluorescent if it absorbs light at one wavelength (excitation) and emits light (fluoresces) at a specific 
TLS Online TPP Program

#Question id: 10518

#Unit 6. System Physiology – Plant

HC-toxin from the fungus Cochliobolus carbonum, which causes northern leaf blight disease, and inhibits
TLS Online TPP Program

#Question id: 3964

#Unit 3. Fundamental Processes

Which of the following is not a characteristic of transcription factors?
TLS Online TPP Program

#Question id: 1865

#Unit 4. Cell Communication and Cell Signaling

What deficiency is indicated by poor skin test results to a range of microbial antigens such as tuberculin and mumps?