A study in the extent of variability of skeletal defects of the extremities

Date

5-1987

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Rita P. Laude

Abstract

The extent variability, mode of inheritance and frequency of expression of the different abnormalities on the extremities among the residents of Los Banos, Laguna were studied. Eight hundred ninety-six persons were interviewed personally and 53 individuals (6%) were found to be affected through a "snow-ball" technique. Out of the 53, thirty-two were natives and 21 were migrants. The different inherited defects observed were polydactyly, syndactyly, brachydactyly, bent fingers and the presence of any two of them combined. Polydactyly registered the highest frequency with 3.1% brachydactyly with 1.3% only 0.7%. their phenotype frequencies conform with the Hardy-Weinberg equilibrium. From among the various expression observed for polydactyly, the unilateral condition was the most frequent. Minor brachydactyly comprised a greater number of individuals with brachydactyly compared to the other types. Less variation of expression was noted for syndactyly.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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