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Somatic Embryogenesis
The process of embryo development is called embryogenesis. It is not the monopoly of the egg to form an embryo. Any cell of the female gametophyte (Embryo sac) or even of the sporophytic tissues around the embryo sac may give rise to an embryo. Thus we can say that 'The phenomenon of embryogenesis is not necessarily confined to the reproductive cycle". In this subsection we will discuss - some examples of "embryos formed in culture", also referred to as "somatic - embryos".
The first observation of somatic embryos was made m Daucus Carota. Other plants in which the phenomenon has been studied in some detail are Ranunculus sceleratus, citrus and coffea spp. In Ranunculus sceleratus somatic as well as various floral tissues, including anthers proliferated to form callus which, after limited unorganized growth differentiated several embryos. These embryos germinated in situ and a fresh crop of embryos appeared on the surface of the seedling. The embryos were derived from individual epidermal cells of the hypocotyl.
Other agro-industrial byproducts Supply of nutrients in the livestock ration can be maintained by using the locally available industrial byproducts, which in spite of having h
Compared to the original sequence what type of mutation occurred on the following DNA sequence? Original: TACGAATTCGATAC Mutant: TACASSTTCCATAC
Sources of vitamin C It is found in many of the natural foods like fresh citrus fruits like limes, lemons and oranges are rich sources of vitamin C. The best and the chea
Which of the following is true for a G-protein? A. After the ATP-ase of the alpha subunit of a G protein converts the ATP bound to the alpha subunit to ADP and inorganic phosph
TYPES OF SPERM Mainly two types . (1) Flagellated Sperm - Generally all sperm are monoflagelated, but in todfish or opsonus sperm is biflagelated. (2) Non flagellated spe
AMOEBA Systematic Position Amoeba was discovered by Russel von Rosenhoff in 1755. He called it the little proteus after the mythical sea god who is believed to be c
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ACCESSORY GLANDS - 1 . PROSTATE GLAND - One in number, 4-5 lobed, it forms 15-30% of semen.Citric acid, lipid, acid phosphatase spermin, fibrinolysine are present.
Genomic blot is the type of Southern blot particularly used to analyze the mixture of DNA fragments derived from total genomic DNA. Because the genomic DNA is quite complicated, w
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