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TLS Online TPP Program

#Question id: 5677

During acrosome reaction, after binding with the egg many sperm membrane proteins are activated. Which of the following membrane protein is not activated?

#Unit 5. Developmental Biology

  1. A calcium transport channel that allows Ca2+ to enter the sperm head.

  2. a sodium-hydrogen exchanger that pumps sodium ions (Na+) into the sperm as it pumps hydrogen ions (H+) out.

  3. a phospholipase enzyme that activate IP3 pathway.

  4. a potassium-hydrogen exchanger that pumps potassium ions (k+) into the sperm as it pumps hydrogen ions (H+) out.

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TLS Online TPP Program

#Question id: 11625

#Unit 8. Inheritance Biology

The following is a hypothetical pathway responsible for the coat color in Labrador retrievers, The pathway is controlled by two independently assorting genes ‘B’ and ‘E’ encoding enzymes as shown below. Mutant alleles ‘b’ and ‘e’ code for non- functional proteins.


What is the expected progeny after selfing a plant with the genotype BbEe?
TLS Online TPP Program

#Question id: 19185

#Unit 13. Methods in Biology

Which of the statement hold true for Quantitative PCR?
TLS Online TPP Program

#Question id: 3285

#Unit 11. Evolution and Behavior

Natural selection continually operates on each species to keep up with improvements made by competing species; each species’ environment deteriorates as its competitors evolve new adaptations. This is known as
TLS Online TPP Program

#Question id: 12740

#Unit 13. Methods in Biology

Choose the incorrect statement for Agglutination.
TLS Online TPP Program

#Question id: 24005

#General Aptitude

Suppose you are a fresh appointee in a school, a girl student stays in school hostel throughout summer-break and preparing for the competitive examination. Because she does not rely on officials so she requests to collect her post at your postal address. What would you like to do in that case?