Genetically proven identical twin sisters with Alzheimer's disease are reported. Both sisters at the age of fifty years developed a dementing illness. Their mother and maternal grandmother developed at the same age a similar illness. It is suggested that in some cases of familial Alzheimer's disease the condition is inherited by a single mutant gene.

They have been classed as identical twins because of their close resemblance both physically and mentally. Rose and May are an intelligent and cheerful pair of elderly women, indistinguishable to a stranger. They have often had the same illnesses at the same time, they object to being parted, and they tend to answer questions in unison. They went to school at about the age of five, always had t...

A chromosomal abnormality in one of the fetuses of a monozygotic twin pregnancy is a rare phenomenon. In the prenatal unit of our cytogenetics laboratory we have recently come across two such heterokaryotypic twin pregnancies. In both cases ultrasound abnormalities were detected in one fetus of each twin pair. Chromosomal analysis showed that one twin pregnancy was discordant for trisomy 21 and...

Distinguishing identical twins using their face images is a challenge in biometrics. The goal of this study is to construct a biometric system that is able to give the correct matching decision for the recognition of identical twins. We propose a method that uses feature-level fusion, score-level fusion, and decision-level fusion with principal component analysis, histogram of oriented gradient...

Fingerprint recognition with identical twins is a challenging task due to the closest genetics-based relationship existing in the identical twins. Several pioneers have analyzed the similarity between twins' fingerprints. In this work we continue to investigate the topic of the similarity of identical twin fingerprints. Our study was tested based on a large identical twin fingerprint database t...

lineage in the islamic law is one of the most basic human rights each individual inherits from his family. when modern assisted reproductive technologies appeared in recent decades, the issue of lineage and the child’s rights did not encounter serious challenges. but with the advent of these technologies, the issue of the child’s lineage resulting from new technologies has become the center of ...

Face recognition is one of the most challenging problems in the domain of image processing and machine vision. Face recognition system is critical when individuals have very similar biometric signature such as identical twins. In this paper, new efficient facial-based identical twins recognition is proposed according to the geometric moment. The utilized geometric moment is Pseudo-Zernike Momen...

This study investigates the formant dynamics of Mandarin and Shanghainese /ua/ in bilingual identical twins. Data collected from two sessions were analysed using Discriminant Analysis. The results show that despite the same organic structure and similar language environment, differences can be found in the formant dynamics of identical twins. However, cross-session analysis suggests that for id...

Face recognition is one of the most challenging problems in the domain of image processing and machine vision. The face recognition system is critical when individuals have very similar biometric signature such as identical twins. In this paper, new efficient facial-based identical twins recognition is proposed according to geometric moment. The utilized geometric moment is Zernike Moment (ZM) ...

Perthes disease (LCPD) remains a major subject of discussion. Moreover, identical twin studies are of great value in terms of determining the genetic implications of LCPD. However, few reports are available on LCPD in identical twins. Since Giannestras first reported of LCPD in identical twins in 1954, only 7 reports have been issued. Moreover, hardly any papers have reported the simultaneous o...