THE INVESTIGATION OF THE GENETIC STRUCTURE OF POPULATIONS. Period covered : October 1, 1960-October 31, 1961
Technical Report
·
OSTI ID:4806413
The viability effects of newly induced secondchromosome mutations are expressed in heterozygous condition. There appears to be very little effect. One interesting point is that: the regression of viability on radiation exposure has consistently been positive for flies homozygous for entire second chromosomes while it has been negative for flies carrying two different chromosomes from the same population. At one time, this difference bordered on statistical significance. An analysis of data obtained from Dobzhansky is described which is believed to prove the existence of over-dominance. In brief, if over-dominance does not exist, the viability of homozygous and heterozygous individuals should converge on a common point at the upper end of the viability distribution. In contrast to this expectation, the viabilities of homozygotes and heterozygotes diverge in the region of high viabilities. New work on the study of inversions and deficiencies is also described. (auth)
- Research Organization:
- New York State Coll. of Agriculture, Ithaca
- NSA Number:
- NSA-16-005159
- OSTI ID:
- 4806413
- Report Number(s):
- TID-14463
- Country of Publication:
- United States
- Language:
- English
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