Tag: CSIR NET Life Science Free Test on Basic Concepts of Development

In a transplantation experiment, the area of presumptive ectoderm from an early frog gastrula was transplanted to a region of the newt gastrula destined to become parts of the mouth. […]

In chick, development of wing feather, thigh feather and claws depends on epithelial specificity conferred by induction from mesenchymal components from different sources of the dermins. This may be attributed […]

Induction is an extrinsic process that depends on the position of a cell in the embryo. It is a process whereby one cell or group of cells can influence the […]

Which one of the following best describes the ability of the cells to respond to a specific inducing signal? (1) Potency (2) Equivalence (3) Competence (4) Specification In the realm […]

12. Cell to cell communication is important in development of an organism. The ability of cells to respond to a specific inductive signal is called (1) Regional specificity of induction […]

Certain proteins or mRNAs that are regionally localized within the unfertilized egg and regulate development are called (1) gene regulators. (2) morphometric determinants . (3) cytoplasmic determinants. (4) mosaic forming […]

Following statements are being made regarding specification determination during animal development: A. During the course of commitment, the cell may not appear different from its nearest or most distant neighbors […]

With respect to development of any organism, “conditional specification” would result in which type of development? (1) Regulative (2) Mosaic (3) Syncytial (4) Definitive Conditional specification is a vital process […]

With respect to development of any organism, “autonomous specification” would result in which type of development? (1) Regulative. (2) Syncytial. (3) Mosaic. (4) Definitive. Autonomous specification is a crucial concept […]

If you remove a set of cells from an early embryo, you observe that the adult organism lacks the structure that would have been produced from those cells. Therefore, the […]