Sex in bacteria; genetic studies, 1945-1952.
نویسندگان
چکیده
Sex in Bacteria: Genetic Studies, 1945-1952: V'7 Joshua Lederberg and E. L. Tatum ............................ 169 aNew s and Notes ........... ......................... 175 Technical Papers A Criticism of the Indiscriminate Use of the SchmidtThannhauser Method for the Fractionation of Nucleic Acids in Biological Material: Marion L. Drasher . .......................................... 181 The Occurrence of Acquired Hemolytic Anemia in Subjects Group M. L. S. P. Lucia . ............................................ 183
منابع مشابه
Relative frequencies and sex distributions of human multiple births.
Hellin (1895) published evidence indicating that the relative frequencies of multiple births conform to a simple mathematical relationship which may be expressed thus: The frequency of triplet maternities is equal to the square of the frequency of twin maternities, and the frequency of quadruplet maternities is equal to its cube. Stated in general terms, if f is the frequency of twin litters, t...
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عنوان ژورنال:
- Science
دوره 118 3059 شماره
صفحات -
تاریخ انتشار 1953