#Question id: 5121
#Unit 5. Developmental Biology
Following statements are being made regarding ‘stem cells. Which statement is incorrect?
#Question id: 5122
#Unit 5. Developmental Biology
In amphibia, when epidermal (ectodermal) and mesodermal cells are brought together in a mixed aggregate, the epidermal cells move to the periphery of the aggregate, and the mesodermal cells move to the inside by the process of selective affinity. Which of the following statement describe the phenomena of selective affinity?
#Question id: 5123
#Unit 5. Developmental Biology
The generation of specialized cell typces is called ‘differentiation’, a process during which-
#Question id: 5124
#Unit 5. Developmental Biology
Following statements are being made regarding conditional specification –
A. The process by which cells achieve their respective fates by interacting with other cells.
B. the cell “knows” very early what it is to become without interacting with other cells.
C. The critical factors that control cell fate are present and differentially segregated in the cytoplasm of these cells.
D. a cell becomes is specified by the array of interactions it has with its neighbors, which may include cell-to-cell contacts (juxtacrine factors), secreted signals (paracrine factors).
Which of the above statements are correct?
#Question id: 5125
#Unit 5. Developmental Biology
In above experiment in figure.A two differently positioned blastula cells are specified to become distinct muscle and neuronal cells.In figure.B when These two different blastula cells are placed together in culture. Following results are obtained according to step(1) and step(2). Which statement is correct about muscle cell commitment?
#Question id: 5126
#Unit 5. Developmental Biology
Which one is correct according to adult stem cell lineage?