Download e-book for iPad: An Introduction to Population Genetics Theory by James F. Crow, Motoo Kimura

By James F. Crow, Motoo Kimura

ISBN-10: 1932846123

ISBN-13: 9781932846126

This textbook, initially released in 1970, provides the sector of inhabitants genetics, beginning with user-friendly recommendations and best the reader good into the sector. it really is involved quite often with inhabitants genetics in a strict experience and offers essentially with traditional populations and no more absolutely with the fairly comparable difficulties that come up in breading cattle and cultivated plans. The emphasis is at the habit of genes and inhabitants attributes lower than ordinary choice the place an important degree is Darwinian health. this article is meant for graduate scholars and complicated undergraduates in genetics and inhabitants biology This e-book steers a center direction among thoroughly verbal organic arguments and the rigor of the mathematician. the 1st two-thirds of the e-book don't require complex mathematical historical past. a standard wisdom of calculus will suffice. The latter elements of the ebook, which take care of inhabitants stochastically, use extra complicated tools. bankruptcy Titles: 1. versions of inhabitants development. 2. Randomly mating populations. three. Inbreeding. four. Correlation among kinfolk and assertive mating five. choice. 6. Populations in approximate equilibrium. 7. homes of a finite inhabitants. eight. Stochastic procedures within the switch of gene frequencies. nine. Distribution of gene frequencies in populations. Appendix. a few statistical and mathematical tools often utilized in inhabitants genetics. Bibliography. thesaurus. Index.

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On the other hand, in a crowded environment (K selection) there is a great value on efficiency of utilization rather than simple productivity. 30 A N INTRODUCTION TO POPULATION GENETICS THEORY Ecologists have considered in more detail equations of these types. For many purposes it is more meaningful to measure biomass rather than simply count numbers, so that one isn't in the position of equating one mouse with one elephant. But we shall do no more with the subject here and get on to problems that are more strictly genetic.

In the last chapter we were interested in the total number of individuals in the population and in different subpopulations. In genetic studies there is usually greater interest in the relative numbers of different genotypes, so it is convenient to express the numbers of different types as proportions of the total. As long as we use deterministic models the total number in the population is not important and we can deal as well with proportions. With stochastic models the numberin the population becomes important in determining the extent of random fluctuations and therefore must be taken into consideration.

03, so we look for an explanation. A plausible basis for the discrepancy is revealed by a finer analysis. 1. The expected numbers are computed on the assumption of random mating by the method of maximum likelihood. 2. 77 and (4) deuteranomaly, or partial green blindness. 3. If we let p , , p, ,p , , and p, stand for the frequencies of the four kinds of abnormal X chromosomes, these proportions can be estimated directly from the proportions in males. From these proportions we can estimate the expected proportions in females.

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An Introduction to Population Genetics Theory by James F. Crow, Motoo Kimura


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