Abstract
Drastic alterations in neural morphogenesis can be induced by ultraviolet irradiation of the amphibian egg. The target area of U.V. was determined either by direct irradiation of various regions of the egg or by comparing the area of the U.V. hit with the location of the dorsal lip. Axolotl eggs which displayed easily recognizable gray crescents were employed for the direct irradiation experiments and albino axolotl eggs were used for a comparison of the U.V. sensitivity of the animal and vegetal halves of the egg. Marked frog eggs were employed to determine the relationship between the sensitive area and the site of formation of the dorsal lip. It was concluded that the dorsal marginal zone of the fertilized, uncleaved egg was the most sensitive area of the egg. Ovarian homogenates provide a source of material for correcting, by microinjection, the effects of U.V.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
