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TLS Online TPP Program

#Question id: 7110

What may be the molecular trigger that causes cells in the presomitic mesoderm to finally condense into somites?

#Unit 5. Developmental Biology

  1. A gradient of retinoic acid exists that emanates both anteriorly and posteriorly from the somites.

  2. The FGF gradient drops off in the region that is forming somites.

  3. Periodic waves of c-hairy1 are expressed in the presomitic mesoderm, such that cells in the more anterior somites will have been exposed to fewer waves of c-hairy1 than the cells in more posterior somites.

  4. Signaling from the receptor Notch is required for somite formation.
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TLS Online TPP Program

#Question id: 4140

#Unit 3. Fundamental Processes

Which of the following statements about bacterial mRNA is true?
TLS Online TPP Program

#Question id: 10654

#Unit 10. Ecological Principles

Complete the following hypothetical life table for a bird

 

What will be population size in next generation?
TLS Online TPP Program

#Question id: 33465

#Unit 1. Molecules and their Interaction Relevant to Biology

GC Minor groove in DNA molecule show chemical information as
TLS Online TPP Program

#Question id: 5165

#General Aptitude

A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7,which is divisible by 11. Then (a+b)=? 
TLS Online TPP Program

#Question id: 28272

#Unit 5. Developmental Biology

sulfate-containing polysaccharides in the egg jelly is responsible for___