Jérôme Lejeune 1927-1994
نویسندگان
چکیده
منابع مشابه
Jérôme Lejeune (1926-1994): father of modern genetics.
Jérôme Lejeune's greatest achievement was the discovery of the genetic basis of Down's syndrome, which he named trisomy 21. His important research in human genetics, as well as his humanitarian spirit and fight against therapeutic abortion, rightly led to his recognition as the founder of modern genetics.
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We say that a space X admits a homology exponent if there exists an exponent for the torsion subgroup of H * (X; Z). Our main result states if an H-space of finite type admits a homology exponent, then either it is, up to 2-completion, a product of spaces of the form BZ/2 r , S 1 , CP ∞ , and K(Z, 3), or it has infinitely many non-trivial homotopy groups and k-invariants. We then show with the ...
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ژورنال
عنوان ژورنال: médecine/sciences
سال: 1994
ISSN: 1958-5381,0767-0974
DOI: 10.4267/10608/2677