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 […]
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CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Step-by-Step Sequence of Events During Sea Urchin Fertilization: From Sperm Attraction to Membrane Fusion
In case of sea urchin, which of the following is the correct sequence of events taking place during the interaction of sperm and egg? (1) Chemo-attraction of sperm to the […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Understanding Competence in Cell-to-Cell Communication During Development
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
How Resact Directs Sperm During Echinoderm Fertilization: The Key to Sperm Chemotaxis
In echinoderms sperm direction is provided by (1) Calcineuric (2) Bindin (3) Resact (4) EBRI Introduction to Sperm Chemotaxis in Echinoderms In echinoderms like sea urchins, fertilization happens externally, posing […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Role of Bindin Protein in Species-Specific Sperm-Egg Adhesion During Sea Urchin Fertilization
Species-specific adhesion of sperm to the egg during sea urchin fertilization, involves the interaction of the sperm adhesive protein (1) Bindin (2) Avidin (3) Fertilin (4) Cortical granule Introduction to […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Understanding Cytoplasmic Determinants in Embryonic Development
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Function of Cortical Granules in Egg Cytoplasm: The Key to Preventing Polyspermy
8. The major function of cortical granules in cytoplasm of egg is to (1) Early block to polyspermy (2) Late block to polyspermy (3) Allowing meiosis to complete (4) Helping […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Understanding Specification and Determination in Animal Development
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Conditional Specification and Its Role in Regulative Development
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding Capacitation and Fertilization: Identifying the Incorrect Statement About Calcium’s Role in Mammalian Egg Activation
7. Which one of the following statements is INCORRECT? (1) Transient rise in Ca2+ is necessary for egg activation in mammals. (2) Sperm induces egg activation and does not involve […]
