Proceedings of the National Academy of Sciences of the United States of America, 7. sējumsNational Academy of Sciences, 1921 The Proceedings of the National Academy of Sciences (PNAS) publishes research reports, commentaries, reviews, colloquium papers, and actions of the Academy. PNAS is a multidisciplinary journal that covers the biological, physical, and social sciences. |
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1.–5. rezultāts no 37.
v. lappuse
... CHROMOSOME MAPS .. By A. H. Sturtevant 181 GENETICAL AND CYTOLOGICAL PROOF OF NON - DISJUNCTION OF THE FOURTH CHROMOSOME OF DROSOPHILA MELANOGASTER .... By Calvin B. Bridges 186 THE BEHAVIOR OF HOMOLOGOUS CHROMOSOMES IN A TRIPLOID CANNA ...
... CHROMOSOME MAPS .. By A. H. Sturtevant 181 GENETICAL AND CYTOLOGICAL PROOF OF NON - DISJUNCTION OF THE FOURTH CHROMOSOME OF DROSOPHILA MELANOGASTER .... By Calvin B. Bridges 186 THE BEHAVIOR OF HOMOLOGOUS CHROMOSOMES IN A TRIPLOID CANNA ...
127. lappuse
... chromosome and of the third chromosome the equivalence holds for only about 10 units . In the end - regions of the second and third chromosomes it holds up to nearly 20 units . For distances somewhat greater than these the map ...
... chromosome and of the third chromosome the equivalence holds for only about 10 units . In the end - regions of the second and third chromosomes it holds up to nearly 20 units . For distances somewhat greater than these the map ...
128. lappuse
... chromosome is the most accurate , since the cal- culation of the distances between the principal loci is made on the basis of all data up to 1920 , and an improved method of weighting and inter- relating the data has been followed ...
... chromosome is the most accurate , since the cal- culation of the distances between the principal loci is made on the basis of all data up to 1920 , and an improved method of weighting and inter- relating the data has been followed ...
129. lappuse
National Academy of Sciences (U.S.). CHROMOSOME ! CHROMOSOME II . CHROMOSOMR 111 CEROMOSOME IT yellow scute 0.02 ... chromosomes of Drosophila melanogaster ( Oct. 15 , 1920 ) . [ A † sign should be added to miniature ( 1,36.1 ) and gull ...
National Academy of Sciences (U.S.). CHROMOSOME ! CHROMOSOME II . CHROMOSOMR 111 CEROMOSOME IT yellow scute 0.02 ... chromosomes of Drosophila melanogaster ( Oct. 15 , 1920 ) . [ A † sign should be added to miniature ( 1,36.1 ) and gull ...
130. lappuse
... chromosome and thus is much used in holding other mutants in their proper relations in balanced stocks and while making up multiple stocks . But most of the unmarked mutants are those more difficult to separate , of poor viability , or ...
... chromosome and thus is much used in holding other mutants in their proper relations in balanced stocks and while making up multiple stocks . But most of the unmarked mutants are those more difficult to separate , of poor viability , or ...
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Citi izdevumi - Skatīt visu
Bieži izmantoti vārdi un frāzes
Academy of Sciences acid Amer atomic average bundles C. B. Davenport character Chem chromosome coefficient of variation column constant corresponding crossing curves determined deviation diameter differential Diminished Distributed free E. H. MOORE Easton ebullioscopy EDWIN BIDWELL WILSON electrons energy equation error experiments factor figure flour frequency fringes function GANO DUNN genetic given Globe heat Home Secretary hypocotyl infection Institution integral interferometer investigations ionization loci mean measurements melanogaster mercury metal method molecules mutant National Academy NATIONAL RESEARCH COUNCIL non-disjunction normal observed obtained orbits Pages paper phosphorescent physical plate postage 1 cent prediction pressure PROCEEDINGS publications pure line Quercina ratio RAYMOND PEARL Read April Reprinted seedlings sextic shown solution temperature theorem tion trypanosomes tube values variable velocity VERNON KELLOGG volume Washington wave-length zero
Populāri fragmenti
137. lappuse - Papers from the Department of Biometry and Vital Statistics, School of Hygiene and Public Health, Johns Hopkins University, No. 4. 2 Pearl, R.,
357. lappuse - Science and the Division of Chemistry and Chemical Technology of the National Research Council.
322. lappuse - PROCEEDINGS is the official organ of the NATIONAL ACADEMY OF SCIENCES and of the NATIONAL RESEARCH COUNCIL for the publication of brief accounts of important current researches of members of the ACADEMY and of the COUNCIL and of other American investigators, and for reports on the meetings and other activities of the ACADEMY and of the COUNCIL.
340. lappuse - Crustacea. AS PACKARD. Read April 21, 1885. Plate opposite page 137, and Plate 4. Pp. 135-139. 16. On the Carboniferous Xiphosurous fauna of North America. AS PACKARD. Read November 13, 1885. Plate opposite page 150, and Plates 5-7. Pp. 141-157. 17. On two new forms of Polyodont and Gonorhynchid fishes from the Eocene of the Rocky Mountains. ED COPE.
360. lappuse - Number 2. Research laboratories in industrial establishments of the United States of America. Compiled by Alfred D. Flinn. March, 1920. Pages 85. Price $1.00. [Out of print. See Number 16.] Number 3. Periodical bibliographies and abstracts for the scientific and technological journals of the world.
141. lappuse - TALIAFERRO 141 value by the 25th day. At first it looks as if the mean tends to rise even until the 32nd day. That this is not the case, however, is shown by the fact that the value on the 25th day does not vary appreciably from that of the 72nd day. The same type of result was obtained for all of the six distances shown in figure 1, namely, for the distances posterior end to parabasal body, parabasal body to nucleus, nucleus to anterior end, anterior end to end of T Lenath FIG.
326. lappuse - K is a, the degree of the subgroup composed of all the substitutions of G which omit a given letter being n — a.
339. lappuse - On a method of precisely measuring the vibratory periods of tuning-forks, and the determination of the laws of the vibrations of forks; with special reference to these facts and laws to the action of a simple chronoscope.
66. lappuse - The volume of many metals at 0° C. and 12,000 kg. [per cm.2] is less than the volume at atmospheric pressure at 0° Abs. The resistance of most metals tends towards zero at 0° Abs., but at 0° C. at the same volume the resistance is only a few per cent less than under normal conditions.
359. lappuse - Report of research under the joint auspices of the US Bureau of Mines and the National Research Council. By SP HOWELL.