Frühontogenetische Schalen jurassischer und by Schröder M.

By Schröder M.

Show description

Read or Download Frühontogenetische Schalen jurassischer und unterkretazischer Gastropoden aus Norddeutschland und Polen PDF

Similar genetics books

A Dictionary of Genetics

This 8th version of A Dictionary of Genetics comprises over 7,500 up to date and cross-referenced entries, together with 540 which are newly written. The entries comprise the most recent terminology, options, theories, and methods, overlaying not just genetics but in addition such overlapping disciplines as mobile biology, medication, and evolutionary biology.

Allergy Frontiers: Diagnosis and Health Economics

Whilst I entered the sector of allergic reaction within the early Nineteen Seventies, the traditional textbook used to be a couple of hundred pages, and the forte used to be so compact that texts have been frequently authored completely through a unmarried person and have been by no means higher than one quantity. examine this with hypersensitive reaction Frontiers: Epigenetics, Allergens, and possibility elements, the current s- quantity textual content with good over one hundred fifty members from during the international.

Additional info for Frühontogenetische Schalen jurassischer und unterkretazischer Gastropoden aus Norddeutschland und Polen

Example text

It puts an end to the mistaken notion that there is no connection whatever between within-groups and between-groups heritability. While the basic formulas [Eqs. (8) and (9)] in DeFries's paper appear to be correct, I believe some of the things he says about the formulas are in error, either partially or wholly. First, I regard the formula as theoretically important, because it shows precisely the relationship between ht2 and hw2, given the values of t and r. But it is empirically useless, at the present state of our knowledge, because we have no estimates of r for any traits of interest, least of all for intelligence.

1944). Experiments on sexual isolation in Drosophila. III. Geographic strains of D. sturtevanti. Proc. Nat. Acad. Sci. 30, 335-339. DOBZHANSKY, T. (1957). Genetic loads in natural populations. Science, 126, 191-194. , and LEVENE, H. (1955). Genetics of natural populations. 24: Developmental homeostasis in natural populations of D. pseudoobscura Genetics, 40, 797-808. , and STREISINGER, G. (1944). Experiments on sexual isolation. II. Geographic strains of D. prosaltans. Proc. Nat. Acad. Sci. 30, 340-345.

For example, in the mallard duckling Anas platyrhynchos, Ramsay and Hess (1954) found that the sensitive period for imprinting is between 13 and 16 hours after hatching. Whether this imprinting phenomenon is fundamentally different from 37 sexual integration into the group as a consequence of socialization during the first days of life is unclear. The study by Valenstein et al. (1955) on the sexual behavior of the guinea pig provided interesting results. Besides the genetic and hormonal factors, they looked at social components in the determination of this particular behavior.

Download PDF sample

Rated 4.04 of 5 – based on 25 votes