THE HEREDITY OF SEX

The Nucleus in Relation to Heredity and Sex.

Heredity of the Rh Factor.

The blood was obtained from the finger and collected in small test tubes, using as an anticoagulant one drop of 3.8 percent dihydnc sodium citrate for every ten drops of blood. Two percent suspensions of the red cell sediments in saline solution were prepared, and the A , B groups and M , N types were determined. The tests for these agglutinogens were carried out on Boerner well slides, one dro...

The New Theory of Heredity

views, revolutionary though they are, except by the biologists. If this theory is true, it is the most important contribution to biology and evolution since the publication of Darwin's Origin of Species. Till this view is thoroughly grasped, it is mere waste of time to speculate how far disease is capable of being transmitted from parent to offspring. The problem of heredity is one which has hi...

Threshold phenomena versus cell heredity in the manifestation of sex-linked genes in mammals.

The mode of action of sex-linked genes in mammals has been the subject of much discussion in recent years. This has centred round the concept that in the mammalian female, either the maternal or the paternal ^-chromosome is randomly and irreversibly inactivated during development, with the result that in the female, as in the male, one X-chromosome only is active in a given cell (Lyon, 1966, an...

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...