The process of organogenesis in vertebrate embryos is heavily influenced by epithelial-mesenchymal transitions (EMTs). Which of the following is NOT a characteristic feature of EMT during organogenesis?
Loss of cell adhesion molecules.
Increased cell motility.
Increased cell proliferation within the epithelium.
Degradation of the extracellular matrix.
Related Questions
The archenteron in a developing gastrula will eventually give rise to which structure in the adult organism?
Neural tube
Notochord
Digestive tract
Coelom
Differentiation in plants is open because
Cells/tissue arising out of meristem regain the capacity of division under certain conditions
Cells/tissue arising out of different meristem have different structures at maturity
Cells/tissue arising out of different meristem have same structures at maturity
All of the above
Which of the following statements are correct?
I. A multicellular organism is composed of mainly three types of cells
II. Undifferentiated cells are stem cells and are unspecialised cells, which usually possesses the power of division
III. Differentiated cells are post-mitotic cells and are specialised to perform specific functions
IV. Dedifferentiated cells are differentiated cells which revert to undifferentiated state to take over the function of division
I, II and III
II, III and IV
I and IV
All of the above
Which hormone plays a crucial role in metamorphosis in amphibians?
Growth Hormone
Insulin
Glucagon
Thyroxine
Which of the following exhibits the least plasticity?
Glass
Copper
Steel
Gold
Which one is the example of dedifferentiation?
Procambium and vascular cambium
Cork cambium and interfasicular cambium
Cork cambium and vascular cambium
Procambium and cork cambium
I. Increased vacuolation
II. Cell enlargement
III. New cell wall deposition
Which of the above are the characteristics of phase of elongation?
Choose the correct option accordingly
I and II
II and III
I and III
I, II and III
The cells proximal (just next away from the tip) to the meristematic zone represents the phase of
Division
Maturation
Elongation
Meristematic division
Development includes (plants)
I. Differentiation
II. Redifferentiation
III. Dedifferentiation
Select the right combination from the given option
I and II
II and III
III and I
I, II and III
In plants, the conversion of permanent tissues like parenchyma to meristematic tissue like interfascicular cambium is an example of:
Redifferentiation
Differentiation
Dedifferentiation
Senescence