Tag: CSIR NET Life Science Previous Year Questions and Solution on Morphogenesis and Organogenesis in Animals

Hydra shows morphallactic regeneration and involves which one of the following signal transduction pathway in its axis formation? (1) Wnt/β-catenin pathway (2) Retinoic acid pathway (3) FGF pathway (4) Delta-Notch […]

In case of morphallactic regeneration: (1) there is re-patterning of the existing tissues with little new growth (2) there is re-patteming of the existing tissues after the stem cell division […]

If hydra is fragmented into various parts, separate group of cells re-pattern themselves into various small hydra. Such an mode of development is termed as (1) Regeneration (2) Morphallaxis (3) […]

In hydra if any part is lost remaining portion re-pattern itself and give rise to complete organism. Such a pattern of regeneration is termed as (1) Epimorphosis (2) Morphallaxis (3) […]

Which one of the following statements regarding regeneration in Hydra is correct? (1) It follows only stem cell-mediated regeneration. (2) It follows only stem cell-mediated regeneration and morphallaxis. (3) It […]

Which of poikilotherm have endogenous cardiac stem cells regenerative heart? (1) Snake (2) Lizard (3) Zebrafish (4) Toad  Comparing Poikilotherms for Cardiac Regeneration Zebrafish (Danio rerio): Renowned for their remarkable […]

Axolotal Larvae is due to- (1) Absence of thyroid gland in organism (2) Lack of iodine in habitat (3) Lack of pituitary hormone (4) Unfavorable environment The Cause of Axolotl […]

Human polysyndactyly (joining of extra digits) syndrome results from a homozygous mutation at (1) antennapedia complex locus (2) one of the genes of Hox D (3) one of the genes […]

The hedgehog pathway is extremely important in vertebrate limb development, neural differentiation and facial morphogenesis. In accordance with the above statement, what would happen in mice that are homozygous for […]