Question

Neural tube Axis growth Cac25a+ dividing PSM progenitors PSM NMP collective migration Somite Fibronectin-integrin interactions couple PSM with NC elongation Entering PSM NC elongation by vacuole inflation Progenitor

(3 points) If Cdc25a levels in the progenitor cells in the maturation zone were to be reduced by half using morpholinos specific to Cdc25a mRNA, what do you think would happen to (a) axis elongation, (b) neural tube formation, and (c) somite formation (be specific about the phenotype you predict)?

Answer 1

AXIS ELONGATION: The developmental growth that results in the elongation of a line that defines poarity or symmetrically in an anatomically of PSM progentitor

NEURAL TUBE FORMATION: The neural tube process is neurulation ,which will become the brain and spinal cord it can folds and fuse in midline.

SOMATIE FORMATION: A somatic cell is generally taken to mean any cell forming the body of an organism,in plant embryo is derived from a single somatic cell or group of somatic cell, plants growth regulators in the tissue culture medium can be manipulated to induced callus formation and subsequently to induce embryos to form the callus. in mammalian the germline cells are the sperm and ova(also known as gametes) which fuse during fertilization to produce a cell called a zygote, from which the entire mammaliam embryo develops.