In plant lateral root initiates from (1) Pericycle (2) Cortex (3) Pith (4) Endodermisv Introduction Lateral roots are essential for increasing the root system’s surface area, allowing plants to efficiently […]
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CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Role of Auxin Gradient in Embryonic Axis Formation During Early Plant Development
Factor responsible for formation of embryonic axis during early developmental pathway of plant is (1) Auxin gradient (2) Morphogens (3) Orientation of embryo sac (4) Plane of Cell Division Introduction […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Mechanisms of Lens Formation in Xenopus: Signaling and Tissue Competence in Embryonic Development
During lens formation in the Xenopus, the following statements have been proposed: A. Lens induction can be achieved in the absence of optic vesicle after priming of head ectoderm by […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Gametophytic Self-Incompatibility: Molecular Mechanism of SRK and SCR/SP11 Interaction Leading to Pollen Inhibition
During gametophytic self-incompatibility the primary response is (1) The interaction between the SRK and SCR/SP11 and downstream cellular and molecular events, leading eventually to pollen inhibition (2) S-RNase probably causes […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Apogamy in Plants: Asexual Development of Sporophyte from Gametophyte Without Fertilization
The development of sporophyte directly from gametophytic tissue without fusion of gametes is termed as (1) Apogamy (2) Apospory (3) Adventive embryony (4) Apomixis The development of a sporophyte directly […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
The Role of SKN-1 Protein in Controlling EMS Blastomere Fate in Caenorhabditis elegans Development
In C. elegans the SKN-1 protein controls the fate of the EMS blastomere which generates the posterior pharynx. With reference to the above which one of the following statements is […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Evidence Supporting the Equivalence Group Model of Vulval Precursor Cells in C. elegans
The group of 6 cells (P3.p to P8.P) called vulval precursor cells (VPCs) of C. elegans form an equivalence group. The following statements were made as evidence that VPCs form […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Cell Fate Decision Between Anchor Cell and Uterine Precursor in Caenorhabditis elegans: Role of Lateral Inhibition and Signaling Pathways
In wild type C. elegans hermaphrodites, two adjacent cells, Z1.ppp and Z4.aaa, have the potential to become the anchor cell. They interact in a manner that causes one of them […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Roles and Signaling in Vulva Formation of Caenorhabditis elegans: Anchor Cell, VPCs, and Developmental Fate Decisions
The two cell types, Anchor cell and vulval precursor cells are involved in vulva formation in C. elegans. The following statements are given towards understanding the roles of these two […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding Key Regulatory Mechanisms in Caenorhabditis elegans Vulval Development: Anchor Cell, VPCs, and Cell Fate Decisions
Following statements were made regarding vulval development in Caenorhabditis elegans: A. The six vulval precursor cells (VPCs) are influenced by the anchor cell to form an equivalence group. B. In […]
