Biology of Acetabularia by Jean Brachet

Posted by

By Jean Brachet

Show description

Read Online or Download Biology of Acetabularia PDF

Similar biology books

Becker's World of the Cell (8th Edition)

“Because we take pleasure in interacting with biology less than- grads and imagine that they need to have biology textbooks which are sincerely written, make the subject material proper to the reader, and support them savor not just how a lot we already find out about biology—cell biology, in our case—but additionally how even more is still investi- gated and came across.

Molecular Biology of Long Non-coding RNAs

​Long non-coding RNAs (lnc)RNAs have emerged as a brand new paradigm in epigenetic law of the genome. millions of lncRNAs were pointed out and saw in a variety of organisms. not like mRNA, lncRNA don't have any protein-coding potential. ​So, whereas their functionality isn't really fullyyt transparent, they might function key organizers of protein complexes that permit for larger order regulatory occasions.

Images of Biologically Active Structures in the Immune System: Their Use in Biology and Medicine

The variety of antigen-binding constructions of antibody molecules is so huge that each attainable antigen might be certain by means of an antibody molecule in the immune procedure. this is often actual even for the antigen binding websites of antibodies referred to as idiotypes, that are certain through complementary bind­ ing websites of different antibodies referred to as anti-idiotypes.

Extra info for Biology of Acetabularia

Example text

The sedimentation pattern of the RNA's, extracted from whole homogenates or from the chloroplastic pellet of adult, cap-bearing plants (in which the vegetative nucleus has disappeared), undergoes the same modifications as in the case of anucleate fragments. This observation supports the idea that the nucleus might control the normal level of both the 16 and 25 s RNA T s in the chloroplasts. Moreover, Farber et al. (1969) have shown that the ability of the Acetabularia RNA T s to stimulate protein synthesis in a cell-free system decreases during cap formation.

Brächet, Biochim. Biophys. Acta 6A_, 157 (1963). 4. B. R. Green, V. Heilporn, S. Limbosch, M. Boloukhere and J. Brächet, Proc. S. Nat. Acad. Sei. 58, 1351 (1967). 5. D. C. Shephard, Exp. Cell Res. 31_, 93 (1965). 6. V. Heilporn-Pohl and J. Brächet, Biochim. Biophys. Acta, 119, 429 (1966). 7. L. L. Vaughan and A. Rich, J. Mol. Bio!. 7_, 130 (1963). 8. R. Wells and M. Birnstiel, Biochem. J. 112, 777 (1969). 9. E. Baltus, J. Edstrom, M. Janowski, J. Hanocq-Quertier, R. Tencer and J. Brächet, Proc.

In a few spots, fi­ brils with a diameter of 35-40 A were found, suggesting the presence of single-stranded regions. g. stroma) disturbing the protein monolayer and probably contributing to a shadowing artifact. Plate 5 is part of another large display. The un­ coiled region is continuous with the coiled region. 3 for the latter to compensate for loss of length on twisting. This makes a total of 75 μ or 150 x 10" daltons for a small part which is only about one-tenth of a display. In Plate 6, another region of the same display, there is a ring formed by supercoiling.

Download PDF sample

Rated 4.93 of 5 – based on 11 votes