Question

С помощью какого эксперимента можно доказать что зчаток одного органа определяет развитие других органов???????? ПОМОГИТЕ СРОЧНО НУЖНО

Answer 1

Доказать, что зачаток одного органа определяет развитие других можно с помощью эксперимента, в котором у зародыша на стадии ранней гаструлы берут участок спинной стороны тела, из которого в дальнейшем должна развиться хорда и мезодерма, и пересаживают его на брюшную сторону другой гаструлы. В результате этой пересадки на брюшной стороне второй гаструлы из клеток, которые были должны были давать начало кожным покровам, сформировалась дополнительная нервная трубка. Это явление называется эмбриональной  индукцией.

Answer 2

Experiment Demonstrating the Influence of One Organ on the Development of Others

To demonstrate that the development of one organ influences the development of others, a classic experiment known as the "organizer experiment" can be conducted. This experiment involves the transplantation of an organizer region from one embryo to another, which results in the induction of a secondary axis and the development of additional structures.

Key Points: - The organizer experiment demonstrates that the presence of an organizer region can influence the development of neighboring tissues and organs. - This experiment provides evidence for the concept of embryonic induction, where one group of cells can influence the development of nearby cells and tissues.

In this experiment, the organizer region, which contains signaling molecules and factors responsible for inducing the formation of specific tissues and organs, is transplanted from a donor embryo to a host embryo. The host embryo, upon receiving the organizer region, exhibits the development of additional structures and tissues as a result of the influence exerted by the transplanted organizer.

Example of the Experiment: - The transplantation of the Spemann-Mangold organizer in amphibian embryos is a classic example of the organizer experiment. This experiment demonstrated the ability of the organizer to induce the formation of a secondary body axis and the development of neural tissue in the host embryo.

By conducting the organizer experiment, researchers can provide empirical evidence for the influence of one organ or tissue on the development of others, shedding light on the intricate processes of embryonic development and the interactions between different cell populations during morphogenesis.

I hope this information is helpful! If you have further questions or need additional assistance, feel free to ask.