how can you distinguish the dorsal from the ventral horns?
Developmental Biology Discuss how the dorsal-ventral axis is established in amphibian or fish embryos. You should include in your answer the names of the most important molecules. Feel free to discuss manipulations such as knockouts that have provided evidence.
How do I know if I am looking at a Ventral or a Dorsal view of the brainstem?
5. (4) What will appen to dorsal/ventral patterning in Xenopus under the conditions listed below (a-h)? From the choices (1-3), select the single most plausible outcome for each experiment. 1. No dorsal structures form. 2. Normal embryo development. 3. Extra dorsal structures form. a) Fertlization followed by a brief UV treatment and physical rotation of the b) Fertlization followed by a brief UV treatment, then transplant of a ventral c) Transplant of a dorsal vegetal blastomere from a normal embryo...
1. How do Cerberus, Noggin, Chordin, BMPs and Wnt establish cell fate along the Dorsal-ventral and anterior-posterior axis?
1) What are the different neural progenitor fates that are specified along the dorsal-ventral axis of the neural tube? Why is it important - what are the different neural fates that have to be made? 2) How are different neural fates specified in the ventral half of the neural tube?
5. (4) What will happen to dorsal/ventral patterning in Xenopus under the conditions listed below (a-h)? From the choices (1-3), select the single most plausible outcome for each experiment 1. No dorsal structures form. 2. Normal embryo development 3. Extra dorsal structures form a) Fertilization followed by a brief UV treatment and physical rotation of the embryo Fertilization followed by a brief UV treatment, then transplant of a ventral vegetal blastomere from a 32-celled embryo onto the dorsal vegetal side...
1) The Shh (sonic hedgehog) signaling molecule is important for patterning the dorsal-ventral axis of the spinal cord. Briefly describe where Shh is expressed and how its expression patterns the spinal cord. 2)What is the role of the proliferating chondrocytes and hypertophic chondrocytes in bone development and bone growth? a) Proliferating chondrocytes: b) Hypertrophic chondrocytes:
please explain Fish dissection I a. anatomical terms- anterior and posterior; dorsal and ventral; caudal and cranial; transverse plane, frontal plane, sagittal plane b. External features of a bony fish: Mouth (maxilla and mandible), External nares, Eyes, Operculum, and gills, pectoral fin, anterior dorsal fin, posterior dorsal fin, anal fin, pelvic fin, Caudal fin, lateral line, anus. urogenital opening Internal features of a bony fish: air bladder, liver, stomach, esophagus, intestine, spleen, pyloric C. caeca, testes and ovary. kidney. heart...
6) The figure below shows a transverse section of a vertebrate embryo. Dorsal Ventral transverse section through vertebrate embryo For a-e, name the structure or tissue type. In the second blank, name the germ la Name of the structure Germ layer from where this came: 1切
Drag and Drop Caudal Transverse plane Cephalic 4 Frontal plane Posterior/dorsal 6 Anterior/ventral 7 Midsagittal plane 5