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 […]
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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 […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Matching Mutants with Phenotypes in C. elegans Vulval Development: A Comprehensive Guide
During vulva development in C. elegans, the anchor cell produces Lin-3 protein which interacts with the Let-23 protein present on the six vulval precursor cells (VPCs) that form an equivalence […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Key Insights into C. elegans Vulva Development: Anchor Cell Induction and Cell Fate Determination
Development of vulva in C. elegans is initiated by the induction of a small number of cells by short range signals from a single inducing cell. With reference to this, […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Cellular Structure of Angiosperm Gametophytes: Understanding the 7-Cell Female Gametophyte
Generally the number of cells present in gametophyte of angiosperm are- (1) 7 (2) 8 (3) 3 (4) 5 Introduction Angiosperms, or flowering plants, have highly reduced and specialized gametophytes […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding Vulval Precursor Cell Recruitment in C. elegans: Explaining Developmental Flexibility
In C. elegans during embryogenesis, an anchor cell and 6 hypodermal vulval precursor cells (VPCs) get involved in forming the vulva. If 3 of the hypodermal VPCs are killed by […]
