Following are the events that might take place during demo-ventral axis specification in early embryonic development of Drosophila: A. ‘Torpedo’ receptor activation B. ‘Pipe’ synthesis C. A cascade of protease […]
Tag: CSIR NET Life Science Free Test on Drosophila Development
No posts found.
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Molecular Mechanisms Generating the Dorsal-Ventral Axis in Drosophila Embryogenesis
The following statements regarding the generation of dorsal/ventral axis in Drosophila was made: A. Gurken protein moves along with the oocyte nucleus and signals follicle cells to adopt the ventral […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Regulation of Anterior-Posterior Compartments in Drosophila Segments by Wingless and Engrailed Genes
The anterior-posterior compartment of each segment of Drosophila is defined by wingless and engrailed genes. The following statements are given towards explaining their regulation: A. Wingless is a secretory factor […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Effects of Wingless RNAi Expression in Developing Drosophila Embryos: Implications for Segmental Patterning
What will happen if wingless RNAi is expressed in wingless expressing cells from the stage when this gene initiates its expression in a developing Drosophila embryo? A. The enhanced expression […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Maintenance of Engrailed and Wingless Expression in Drosophila: Key Molecular Mechanisms
The continued expression of engrailed and wingless is maintained by interactions between the Engrailed- and Wingless-expressing cells. The following statements are given towards the initiation of the cascade of events […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding Anterior and Posterior Compartment Development in Drosophila Segments
The following are statements regarding the development and maintenance of anterior and posterior compartments in each segment of Drosophila: A. Expression of wingless and engrailed is activated by pair-rule genes […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding Engrailed Expression in Drosophila melanogaster: Defining Posterior Compartment of Each Segment
Engrailed expression in Drosophila melenogaster defines (1) anterior margin of the segment. (2) anterior compartment of each segment. (3) posterior margin of each para-segment. (4) posterior compartment of each segment […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Sequential Expression of Segmentation Genes in Drosophila Embryo Development
16. Segmentation genes in Drossophila are divided into three groups (gap, pair rule and segment polarity) based on their mutant phenotype. Below are some of the major genes expressed in […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Armadillo: The Drosophila Homolog of β-Catenin and Its Role in Development
The homologue of β-catenin in Drosophila is (l) Fushi tarazu (2) Engrailed. (3) Armadillo (4) Cubitus interruptus. In Drosophila melanogaster, the protein Armadillo serves as the homolog of the mammalian […]
CSIR NET Life Science Previous Year Questions and Solution on Development Biology
Understanding Antennapedia Mutations and Their Impact on Drosophila Development
Antennapedia protein expresses in the thoracic segment of the fly and not in the head region. However, a dominant mutation of Antennapedia replaces antenna with leg-like structure. The following statements […]
