Results 31 to 40 of about 21,238,868 (309)

Global patterns in human mitochondrial DNA and Y-chromosome variation caused by spatial instability of the local cultural processes [PDF]

, 2006
Because of the widespread phenomenon of patrilocality, it is hypothesized that Y-chromosome variants tend to be more localized geographically than those of mitochondrial DNA ( mtDNA).
Reddy, B. Mohan, Vikrant Kumar, Kumarasamy Thangaraj, Naidu Vegi M, Naidu, Vegi M., Kumar, Vikrant, Singh, Lalji, Langstieh, Banrida T., Reddy B. Mohan, Banrida T Langstieh, Lalji Singh, Langstieh Banrida T, Komal V Madhavi, Biswas Silpak, Silpak Biswas, Madhavi Komal V, Singh Hardeep Pal, Hardeep Pal Singh, B Mohan Reddy, Mohan Reddy, B., Biswas, Silpak, Kumar Vikrant, Singh Lalji, Singh, Hardeep Pal, B. Mohan Reddy, Thangaraj Kumarasamy, Madhavi, Komal V., Vegi M Naidu, Thangaraj, Kumarasamy, Reddy B.M., Madhavi K.V., Singh L., Singh H.P., Thangaraj K., Kumar V., Langstieh B.T., Biswas S., Naidu V.M.   +37 more
core   +3 more sources

In search of the genetic footprints of Sumerians: a survey of Y-chromosome and mtDNA variation in the Marsh Arabs of Iraq [PDF]

, 2011
Background For millennia, the southern part of the Mesopotamia has been a wetland region generated by the Tigris and Euphrates rivers before flowing into the Gulf.
Hamod, Mohammed A, Baharak Hooshiar Kashani, Semino, O., Augusta S Santachiara-Benerecetti, Grugni Viola, Santachiara Benerecetti, A.S., Olivieri Anna, Grugni, Viola, Pala, Maria, Al-Zahery, Nadia, Nadia Al-Zahery, Mohammed A Hamod, Hamod MA, Grugni, V., Santachiara-Benerecetti Augusta S, Vincenza Battaglia, Antonio Torroni, Santachiara Benerecetti AS, Battaglia, V., Torroni Antonio, Viola Grugni, Al-Zahery Nadia, Baharak Kashani, Ornella Semino, Kashani Baharak, Hamod, M.A., Hamod Mohammed A, Pala Maria, Battaglia, Vincenza, Semino, Ornella, Anna Olivieri, Pala, M., Semino Ornella, Kashani, B.H., Battaglia Vincenza, Olivieri, A., Al Zahery, N., Torroni, A., Torroni, Antonio, Maria Pala, Olivieri, Anna, Hooshiar Kashani, Baharak, Santachiara-Benerecetti, Augusta S   +42 more
core   +1 more source

A boy with 46,X,+mar presenting gynecomastia and short stature [PDF]

Annals of Pediatric Endocrinology & Metabolism, 2017
A 15-year-old boy was referred due to gynecomastia and short stature. He was overweight and showed the knuckle-dimple sign on the left hand, a short fourth toe on the left foot, and male external genitalia with a small phallus.
Ki Eun Kim, Ye Jin Kim, Mo Kyoung Jung, Hyun-Wook Chae, Ah Reum Kwon, Woo Jung Lee, Duk-Hee Kim, Ho-Seong Kim   +7 more
doaj   +1 more source

Y/X-Chromosome-Bearing Sperm Shows Elevated Ratio in the Left but Not the Right Testes in Healthy Mice

Life, 2021
The sex chromosomes play central roles in determining the sex of almost all of the multicellular organisms. It is well known that meiosis in mammalian spermatogenesis produces ~50% Y- and ~50% X-chromosome-bearing sperm, a 1:1 ratio. Here we first reveal
Chengqing Hu, Jiangcheng Shi, Yujing Chi, Jichun Yang, Qinghua Cui   +4 more
doaj   +1 more source

The genetic and cultural impact of the Steppe migration into Europe

Annals of Human Biology, 2021
Background During the early 3rd millennium BCE migration from Pontic Steppe, mainly related to Yamnaya culture, has affected European populations both culturally and genetically, however, it has long been debated to what extent this migration was male ...
Gabriele Scorrano, Fulya Eylem Yediay, Thomaz Pinotti, Motahareh Feizabadifarahani, Kristian Kristiansen   +4 more
doaj   +1 more source

THE Y CHROMOSOME OF DROSOPHILA PSEUDOOBSCURA [PDF]

Genetics, 1935
Uploaded by Plazi for TaxoDros. We do not have abstracts.
openaire   +4 more sources

X chromosome inactivation during Drosophila spermatogenesis [PDF]

, 2007
Genes with male- and testis-enriched expression are under-represented on the Drosophila melanogaster X chromosome. There is also an excess of retrotransposed genes, many of which are expressed in testis, that have “escaped” the X chromosome and moved to ...
Baines, J., Hense, Winfried, Parsch, John, John Parsch, Baines, John F., Parsch John, Hense Winfried, Baines John F, Hense, W., John F Baines, Winfried Hense, Parsch, J.   +11 more
core   +2 more sources

Complete or partial loss of the Y chromosome in an unselected cohort of 865 non-vasectomized, azoospermic men

Basic and Clinical Andrology, 2023
Background Structural abnormalities as well as minor variations of the Y chromosome may cause disorders of sex differentiation or, more frequently, azoospermia.
J Fedder, C Fagerberg, MW Jørgensen, CH Gravholt, A Berglund, UB Knudsen, A Skakkebæk   +6 more
doaj   +1 more source

The Origins of the Royal Spanish Surname Castilla: Genetics and Genealogy

Genealogy, 2023
In most Western European societies, surnames pass from generation to generation and in cases where surnames are shared by fathers to children, the Y chromosome passes down from fathers to male offspring in the same way as surnames do.
Ana María López-Parra, María Soledad Mesa, Fernando Castilla, Eduardo Arroyo-Pardo   +3 more
doaj   +1 more source

The Y chromosome

Reproductive BioMedicine Online, 2002
The Y chromosome has evolved to provide sex determination in mammals. In association with its evolution, genes important for spermatogenesis have been sequestered on this chromosome. Further, X chromosome inactivation has developed as a mechanism to prevent over-expression of genetic factors important for somatic function in females, with maintenance ...
openaire   +2 more sources