Enzyme heterozygosity and morphological variance (reply)

Variance in quantitative traits due to linked dominant genes and variance in heterozygosity in small populations.

The influence of small population size (N) on the genetic variance within and between randomly bred unselected lines, with selfing permitted, is investigated for a model of a quantitative trait determined by linked genes that show dominance within loci but are additive over loci. Formulae for within-line variance include terms in linkage disequilibrum, which occurs by chance in the lines and th...

Biochemical heterozygosity and morphological variability: interpopulational versus intrapopulational analyses.

The literature is replete with articles suggesting the existence of a relationship between variability at biochemical loci and morphological variation in various animal populations, including humans. With few exceptions these previous studies have utilized an interpopulational approach by examining levels of heterozygosity between modal and extreme phenotypes, typically by use of analysis of va...

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Morphological localization of the bacteriophage tail enzyme.

In an earlier report dealing with the chemistry of viral invasion, Barrington and Kozloff (1,2) showed that incubat,ion of various T series bacteriophages with N16-labeled Escherichiu coli B cell walls caused the release of as much as 15 per cent of the total nitrogen from the host cell walls. The characteristics of this interaction appeared to be similar to those of an enzymatic reaction, and ...

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