Results 261 to 270 of about 92,922 (310)
Some of the next articles are maybe not open access.
Sex Chromosomes and Sex Chromosome Abnormalities
Clinics in Laboratory Medicine, 2011This article focuses on constitutional sex chromosome abnormalities detected by conventional cytogenetics and fluorescence in situ hybridization. The author discusses the two general classifications of abnormalities: numerical and structural. Also included are descriptions of unique aspects of X and Y chromosomes, technological advances in detection ...
openaire +2 more sources
Annual Review of Plant Biology, 2008
Although individuals in most flowering plant species, and in many haploid plants, have both sex functions, dioecious species—in which individuals have either male or female functions only—are scattered across many taxonomic groups, and many species have genetic sex determination.
openaire +3 more sources
Although individuals in most flowering plant species, and in many haploid plants, have both sex functions, dioecious species—in which individuals have either male or female functions only—are scattered across many taxonomic groups, and many species have genetic sex determination.
openaire +3 more sources
New England Journal of Medicine, 1976
The sex chromosome abnormalities are one of the most common types of chromosome disorders, occurring once among every 1100 females and once among every 380 males.
openaire +2 more sources
The sex chromosome abnormalities are one of the most common types of chromosome disorders, occurring once among every 1100 females and once among every 380 males.
openaire +2 more sources
Sex Chromosomes and Sex Chromosome Abnormalities
1999It can be argued that the sex chromosomes are the most important pair of chromosomes given their role in determining gender and, therefore, allowing for reproduction and procreation. Considered together, sex chromosome aneuploidies are the most common chromosome abnormalities seen in liveborn infants, children, and adults.
openaire +1 more source
Science, 1967
Karyotypes of many species of the genus Sceloporus support the generalization that there are no morphologically recognizable sex chromosomes in lizards; however, there is a marked sexual dimorphism in the karyotypes of Sceloporus jarrovi and Sceloporus poinsettia ...
C J, Cole, C H, Lowe, J W, Wright
openaire +2 more sources
Karyotypes of many species of the genus Sceloporus support the generalization that there are no morphologically recognizable sex chromosomes in lizards; however, there is a marked sexual dimorphism in the karyotypes of Sceloporus jarrovi and Sceloporus poinsettia ...
C J, Cole, C H, Lowe, J W, Wright
openaire +2 more sources
Sex chromosomes and speciation
Proceedings of the Royal Society of London. Series B: Biological Sciences, 1991Studies of reproductive isolation between animal species have shown (i) that if one sex of the hybrids between two species is sterile or inviable, it is usually the heterogametic sex (Haldane's rule), and (ii) the genes on the sex chromosomes play a particularly large role in hybrid sterility and inviability.
E, Jablonka, M J, Lamb
openaire +2 more sources
Plant sex chromosome evolution
Journal of Experimental Botany, 2012It is now well established that plants have an important place in studies of sex chromosome evolution because of the repeated independent evolution of separate sexes and sex chromosomes. There has been considerable recent progress in studying plant sex chromosomes.
openaire +2 more sources
Sex Chromosomes, Sex Chromosome Disorders, and Disorders of Sex Development
2012It can be argued that the sex chromosomes are the most important pair of chromosomes given their role in determining gender and, therefore, allowing for reproduction and procreation. Considered together, sex chromosome aneuploidies are the most common chromosome abnormalities seen in live-born infants, children, and adults.
openaire +1 more source

