A chimaeric calf with XX/XXY mosaicism and intersexuality

A probabilistic model of mosaicism based on the histological analysis of chimaeric rat liver.

The analysis of pattern development in mosaic and chimaeric animals has provided insight into a number of developmental problems. In order to aid the understanding of the dynamics of the development of mosaic tissues, a computer simulation of the generation of a mosaic tissue was created using simple probabilistic decisions. Results of quantitative analysis of the simulated mosaicism were compa...

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

Report of a Case with Trisomy 9 Mosaicism

Trisomy 9 is a rare chromosome disorder with high neonatal mortality. It is often seen in mosaic form. Most patients who survive are severely mentally retarded. The main features of this syndrome are "bulbous" nose, microphthalmia, dislocated limbs, and other anomalies of skeletal, cardiac, genitourinary, and central nervous system. Most patients have developmental and cognitive impairment. Pat...

A Boy with Xxxxy Sex Chromosomes.

Eight patients with XXXXY sex chromosomes are on record (Fraccaro, Kaijser, and Lindsten, I960; Miller, Breg, Schmickel, and Tretter, I96I; Fraser, Boyd, Lennox, and Dennison, I96I; Fraccaro, Klinger, and Schutt, I962; Barr, Carr, Pozsonyi, Wilson, Dunn, Jacobson, and Miller, I962; Pfeiffer, I962; Schade, Sch6ller, and T6berg, I963). In addition two similar patients with a mosaic pattern have b...

Intersexuality in a Charolais heifer.