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TLS Online TPP Program

#Question id: 32343

At intermediate concentrations of actin subunits, the plus end of the filament remains in the T conformation, while the minus end adopts the D conformation because:

#Unit 2. Cellular Organization
  1. Rate of subunit addition to be slower than nucleotide hydrolysis at the plus end, but faster than nucleotide hydrolysis at the minus end.
  2. Rate of subunit dissociation to be faster than nucleotide hydrolysis at the plus end, but slower than nucleotide hydrolysis at the minus end.
  3. Rate of subunit dissociation to be slower than nucleotide hydrolysis at the plus end & minus end.
  4. Rate of subunit addition to be faster than nucleotide hydrolysis at the plus end, but slower than nucleotide hydrolysis at the minus end.
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TLS Online TPP Program

#Question id: 5115

#Unit 5. Developmental Biology

At the time of mid-blastula transition which of the following event not occur?
TLS Online TPP Program

#Question id: 5116

#Unit 5. Developmental Biology

Which of the following reflects Weismann’s model of development?
TLS Online TPP Program

#Question id: 5117

#Unit 5. Developmental Biology

 The pathway from a gene to a protein in eukaryotic cells involves:
TLS Online TPP Program

#Question id: 5118

#Unit 5. Developmental Biology

Which of the following is not a mechanism by which cells communicate with each other?
TLS Online TPP Program

#Question id: 5119

#Unit 5. Developmental Biology

when the presumptive eye region from a gastrula is grafted into the trunk region of another neurula, it develops to somitic tissue; whereas transplant from eye region of later stage neurula develops as an eye-like structure in host embryo. Which statement describes the results best?

 
TLS Online TPP Program

#Question id: 5120

#Unit 5. Developmental Biology

Which one of the following statements are regarding to epiboly is correct?