11. Gradients of morphogens determine the future dorsal- ventral and anterior-posterior axes of the developing embryo in many organisms. How is the anterior- posterior axis developed in C. elegans? (1) […]
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CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Key Facts About Totipotency and Pluripotency in Mammalian Development
The following statements are made about mammalian development: (A) Zygote is a totipotent stem cell. (B) The cells of inner cell mass are said to be pluripotent. (C) The three […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Matching Fate Maps and Cleavage Patterns: Finding the Right Combination in Embryology
10. Given below are fate map of two organisms and the pattern by which embryos undergo cleavage. Which of the following is/are the right combination(s)? (1) B only […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
The Core Transcription Factors Maintaining Pluripotency in Mammalian Inner Cell Mass
The pluripotency of the inner cell mass in mammals is maintained by a core of three transcription factors namely, (1) Oct 4, Sox 2 and Nanog (2) Oct 4, Sox […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Role of Cdx2 and Oct4 in Early Mammalian Embryonic Cell Fate Decisions
The following demonstrates proposed functions of different genes which determine the decision to become either trophoblast or inner cell mass (ICM) blastomere during early mammalian development: Based on the above […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Stem Cell Niches: Key Regulators of Self-Renewal and Cell Survival
The following are certain statements regarding stem cells: (A) All types of stem cells have the ability to give rise to a complete embryo. (B) Multipotent stem cells are those […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Matching Embryonic Cleavage Patterns with Representative Species: A Comprehensive Guide
The table below lists cleavage pattern and names of species. Match the cleavage patterns with the species. (1) A- i; B- ii; C- iii; D- iv (2) A- ii; B- […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Sequential Role of Key Molecules in Mammalian Embryo Cell Fate Decisions
The decision to become either a trophoblast or inner cell mass blastomere is one of the first decisions taken by any mammalian embryo. Below is a diagrammatic representation of the […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
A Detailed Guide to Embryonic Cleavage Patterns and Their Species Associations
8. Match the following cleavage patterns with the species in which they occur. (1) A-iv, B-iii, C-i, D-ii (2) A-iii, B-i, C-iv, D-ii (3) A-ii, B-iii, C-i, D-iv […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Key Transcription Factors Governing Mammalian Embryonic Development
Following statement were given regarding decisions taken during development of mammalian embryos (A) Pluripotency of inner cell mass is maintain by a core of three transcription factors, Oct 4, Sox […]
