An Indian family with postaxial polydactyly in four generations
Abstract:
An Indian family was observed with postaxial polycactyly in four generations. Of the twelve affected cases, eleven were male and one was female. The affected males showed postaxial polydactyly Type A in both hands and feet. The affected female showed polysyndactyly and both Types A and B postaxial polydactyly. Study of this family strongly suggests a common causal factor for postaxial polydactyly Types A and B and polysyndactyly. The observations also support an autosomal dominant pattern of inheritance and a high degree of genetic heterogeneity in ths malformation.
More Related Videos
05:58Digital Polymerase Chain Reaction Assay for the Genetic Variation in a Sporadic Familial Adenomatous Polyposis Patient Using the Chip-in-a-tube Format
Published on: August 20, 2018
11:54Microsatellite DNA Genotyping and Flow Cytometry Ploidy Analyses of Formalin-fixed Paraffin-embedded Hydatidiform Molar Tissues
Published on: October 20, 2019
Related Concept Videos
Pedigree Analysis
Pleiotropy
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...
Pedigree Analysis
Incomplete Dominance
