TLS Online TPP Program

#Question id: 15416


Which of the following statements are regarding to lens induction in xenopus is incorrect?

#Unit 5. Developmental Biology
  1. Lens induction can be achieved in the presence of optic vesicle after priming of head ectoderm by the anterior neural plate.
  2. The optic vesicle can induce the presumptive head ectoderm to form the lens.
  3. Under the influence of factors secreted by the lens, the optic vesicle becomes retina.
  4. The anterior neural plate primes the head ectoderm via BMP4 and Fgf8 prior to signals from the optic vesicle.
More Questions
TLS Online TPP Program

#Question id: 14989

#Unit 4. Cell Communication and Cell Signaling

Which of the following cells are considered as a cellular bridge for the innate and adaptive immune system?

TLS Online TPP Program

#Question id: 14990

#Unit 4. Cell Communication and Cell Signaling

Which smaller group of cells that crawl slowly along blood vessels, and that also  migrate into tissues in response to infection can differentiate into specific tissue macrophages ?

TLS Online TPP Program

#Question id: 14991

#Unit 4. Cell Communication and Cell Signaling

_____I________in the bone, _____II_______in the central nervous system, and _____III_______in the lung and ____IV________in the liver are tissue-specific examples of macrophages with these properties.

TLS Online TPP Program

#Question id: 14992

#Unit 4. Cell Communication and Cell Signaling

Given cell types contains granules, which perform different function such as;

CELL TYPEMOLECULES IN GRANULEFUNCTIONS
A) Neutrophili) Chemokinesa) Antiviral activity
B) Eosinophilii) Lipid mediatorsb) Vasodilation
C) Basophiliii) Antimicrobial proteinsc) Modulation of adaptive immune response
D) Mast celliv) Histamined) Regulation of inflammation
v) Cytokinese) Direct harm to pathogens
vi) Ribonucleases
Match the given following  cells with their correct functions of granules?

TLS Online TPP Program

#Question id: 14993

#Unit 4. Cell Communication and Cell Signaling

CD-56 marker found on ?

TLS Online TPP Program

#Question id: 14994

#Unit 4. Cell Communication and Cell Signaling

The absence of MHC class I, which is expressed by almost all normal cells, but is specifically down-regulated by some tumors and in response to some viral infections, it will undergo apoptosis by