Darwinism And Human Life the South African Lectures for 1909
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In our eReader you can find the full English version of the book. Read Darwinism And Human Life the South African Lectures for 1909 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Darwinism And Human Life the South African Lectures for 1909
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G. In the re- expression of peculiarities which were characteristic of, say, a grandfather or a great-grandmother.
But we owe to Galton's careful statistical work, as to stature and other qualities in man, and as to coat-colour in Basset hounds, a generalisation which formulates the share which the various ancestors have, on an average, in the inheritance of any individual organism. This Law of Ancestral Inheritance is as follows : " The two parents between them contribute, on the average, one-...half of each inherited faculty, each of them contributing one-quarter of it. The four grandparents con- tribute between them one-quarter, or each of them one-sixteenth ; and so on, the sum of the series J + i + s + A + being equal to 1, as it should be. It is a property of this infinite series that each term is equal to the sum of all those that follow : thus J = J + J+ & + ... , J = J + rg -f . . . , and so on. The prepo- tencies or subpqtencies of particular ancestors, in FACTS OF INHERITANCE 145 any given pedigree, are eliminated by a law that deals only with average contributions, and the varying prepotencies of sex in respect to different qualities are also presumably eliminated.
What to read after Darwinism And Human Life the South African Lectures for 1909?
You can find similar books in the "Read Also" column, or choose other free books by J Arthur John Arthur Thomson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
G. In the re- expression of peculiarities which were characteristic of, say, a grandfather or a great-grandmother.
But we owe to Galton's careful statistical work, as to stature and other qualities in man, and as to coat-colour in Basset hounds, a generalisation which formulates the share which the various ancestors have, on an average, in the inheritance of any individual organism. This Law of Ancestral Inheritance is as follows : " The two parents between them contribute, on the average, one-...half of each inherited faculty, each of them contributing one-quarter of it. The four grandparents con- tribute between them one-quarter, or each of them one-sixteenth ; and so on, the sum of the series J + i + s + A + being equal to 1, as it should be. It is a property of this infinite series that each term is equal to the sum of all those that follow : thus J = J + J+ & + ... , J = J + rg -f . . . , and so on. The prepo- tencies or subpqtencies of particular ancestors, in FACTS OF INHERITANCE 145 any given pedigree, are eliminated by a law that deals only with average contributions, and the varying prepotencies of sex in respect to different qualities are also presumably eliminated.
What to read after Darwinism And Human Life the South African Lectures for 1909?
You can find similar books in the "Read Also" column, or choose other free books by J Arthur John Arthur Thomson to read onlineMoreLess
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