Results 21 to 30 of about 292,497 (164)

Pengaruh suhu lingkungan tropis terhadap penentuan jenis kelamin drosophila

open access: yesJournal of Biological Researches, 2012
Based on many research studies conducted it can be concluded that there are more than 250 theories of sex-determination. This means that there is not any single theory on sex-determination. This study aims at uncovering effects of the temperature of the
G Wayan Seregeg
doaj   +1 more source

Cheiloscopy: A Deterministic Aid for Forensic Sex Determination

open access: yesJournal of Indian Academy of Oral Medicine and Radiology, 2011
Background: Cheiloscopy, the study of lip prints, is an upcoming tool for the identification of persons. The lip print of every person is unique and can be used to fix personal identity.
Rohit Malik, Sumit Goel
doaj   +1 more source

"DETERMINATION OF SEX." [PDF]

open access: yesThe Lancet, 1884
n ...
openaire   +1 more source

Sex Determination: Sex on the Brain? [PDF]

open access: yesCurrent Biology, 2003
Five newly identified sex-biased transcripts in Drosophila are full of surprises: although they are found in fly heads, and manipulating two of them affects mating behaviors, their genes are expressed sex-specifically in non-neural tissues. The way these genes are regulated suggests new complexities in the sex determination pathway.
openaire   +2 more sources

The mir-35 Family Links Maternal Germline Sex to Embryonic Viability in Caenorhabditis elegans

open access: yesG3: Genes, Genomes, Genetics, 2019
The germline sex determination pathway in C. elegans determines whether germ cells develop as oocytes or sperm, with no previously known effect on viability. The mir-35 family of microRNAs are expressed in the C.
Lars Kristian Benner   +2 more
doaj   +1 more source

Can Individuals with 47,XYY Karyotypes Exist without Male Phenotype? A Narrative Literature Review and Case Report

open access: yesFrontiers in Bioscience-Scholar
Background: The 47,XYY syndrome is a genetic condition found in about 1 in 1000 male children. The expected phenotype is male but could vary greatly.
Marcelo Jones Pires   +10 more
doaj   +1 more source

Human sex ratio at amniocentesis and at birth in Taiwan

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2012
Objectives: An increase in the proportion of male-to-female live births has raised concerns in Taiwan. Disclosure of fetal sex during prenatal screening is not allowed by the Taiwan government.
I-Wen Lee   +3 more
doaj   +1 more source

The Diversity and Dynamics of Sex Determination in Dioecious Plants

open access: yesFrontiers in Plant Science, 2021
The diversity of inflorescences among flowering plants is captivating. Such charm is not only due to the variety of sizes, shapes, colors, and flowers displayed, but also to the range of reproductive systems. For instance, hermaphrodites occur abundantly
Ana Paula Leite Montalvão   +3 more
doaj   +1 more source

Polygenic sex determination [PDF]

open access: yesCurrent Biology, 2013
What is sex determination? Sex determination is the mechanism by which sexual organisms direct gonad development towards distinct but reproductively compatible outcomes. Molecular signaling cascades in the developing gonad provide instructions to the tissue to develop as male or female (or in some cases hermaphrodite), and these signals can be ...
Moore, Emily C., Roberts, Reade B.
openaire   +2 more sources

Distinct sperm nucleus behaviors between genotypic and temperature-dependent sex determination males are associated with replication and expression-related pathways in a gynogenetic fish

open access: yesBMC Genomics, 2018
Background Coexistence and transition of diverse sex determination strategies have been revealed in some ectothermic species, but the variation between males caused by different sex determination strategies and the underlying mechanism remain unclear ...
Yao-Jun Zhu   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy