Following are some statements given for vertebrate eye lens induction: A. Paired box6 (Pax6) is a transcription factor synthesized in specific region of head surface ectoderm. B. Pax6 is secreted […]
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CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Role of PLETHORA Transcription Factor in Root Meristem and Elongation Zone Regulation
Which one of the following transcription factors is important for delimiting the meristematic and elongation zones of roots? (1) SCARECROW (SCR) (2) SHORT ROOTS (SHR) (3) PLETHORA (PLOT) (4) SPEECHLESS […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
The Role of Pax6 in Optic and Nasal Structure Formation: Competence and Induction in Eye Development
The functionality of the pax6 gene in the formation of optic and nasal structure may be attributed to the following (A) Pax6 makes the optic vesicle competent and allows lens […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Role of SCARECROW Gene in Root Radial Patterning: Effects of Mutation on Cortex and Endodermis Formation
Which would be the result of mutation in SCARECROW genes responsible for radial patterning in roots of higher plants? (1) No apical root formation (2) Root hair will fail to […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Understanding the Gametophyte Generation in Plants: The Role of the Embryo Sac
Which of the following represents the gametophyte generation in plants (1) Ovule (2) Megaspore (3) Embryo sac (4) Egg Introduction Plants exhibit an alternation of generations life cycle between haploid […]
CSIR NET Life Science Previous Year Questions and Solution on Basic Concepts of Development
Origin of Lateral Roots in Plants: Role of the Pericycle in Root Development
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 […]
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 […]
