نتایج جستجو برای: celled structure
تعداد نتایج: 1568886 فیلتر نتایج به سال:
abstract: the present thesis includes ; one preface and 11speeches , that each speech considered in different researches . the prefact part , studied grammer back ground , the first speech considered a brief description about grammatical credits . the second speech considered the different typs of sentences , from structure and meaning points of view . the third speech considered the verb es...
Pregnancy offers a great strain on the body, for a two celled embryo becomes a two billion celled foetus. There is rapid proliferation of various maternal tissues and haemopoietic system, and the normal replacement of body tissue has to be continued. In consequence there is an exceptional demand for folic acid because of role of folates in cellular reproduction and tissue growth. In a country l...
BACKGROUND AND AIMS In Tilia amurensis, two types of trichomes (hairy and glandular) develop from epidermal surfaces of cotyledons and hypocotyls of zygotic embryos soon after germination. Here, it is demonstrated that glandular trichome initials develop directly into somatic embryos when treated in vitro with 2,4-dichlorophenoxyacetic acid (2,4-D). METHODS Zygotic embryos of Tilia amurensis ...
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