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#Question id: 28426


A sheet of cells that grows anteriorly from Koller’s sickle combines with the primary hypoblast to form the complete hypoblast layer is termed as___

#Unit 5. Developmental Biology
  1. area pellucida cell
  2. Subgerminal cavity
  3. Secondary hypoblast cell
  4. Posterior marginal zone cell
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TLS Online TPP Program

#Question id: 28503

#Unit 5. Developmental Biology

Hox12 and Hox13 paralogues gene specify which bones of tetrapod limb ?

TLS Online TPP Program

#Question id: 5954

#General Aptitude

My friend told me that his birthday falls on 2nd October, which is a Monday. Coincidently his daughter’s birthday is 2 days before the 30th of the same month. On which day he will celebrate his daughter’s birthday?

TLS Online TPP Program

#Question id: 32373

#Unit 2. Cellular Organization

Cytochalasin D,  a fungal alkaloid, depolymerizes actin filaments by:

TLS Online TPP Program

#Question id: 15818

#Unit 8. Inheritance Biology

You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.

What is the maximum number of genes that these 20 mutants could represent?

TLS Online TPP Program

#Question id: 33392

#Unit 1. Molecules and their Interaction Relevant to Biology

For γ-Turns, which is of the following statement is correct
a. Consists of 5 amino acids
b. H-bond is seen between i and i+3
c. The conformation of i+1 is crucial 
d. dihedral angles of residue i+1 are (70, -60)

which is of the following statements are correct