Results 31 to 40 of about 969,017 (358)

A CRISPR-Cas9 sex-ratio distortion system for genetic control. [PDF]

open access: yes, 2016
Genetic control aims to reduce the ability of insect pest populations to cause harm via the release of modified insects. One strategy is to bias the reproductive sex ratio towards males so that a population decreases in size or is eliminated altogether ...
Bernardini, F   +9 more
core   +3 more sources

Evolutionary diversity and turn-over of sex determination in teleost fishes. [PDF]

open access: yes, 2009
Sex determination, due to the obvious association with reproduction and Darwinian fitness, has been traditionally assumed to be a relatively conserved trait.
Avise, JC, Mank, JE
core   +2 more sources

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

Identification of general patterns of sex-biased expression in Daphnia, a genus with environmental sex determination [PDF]

open access: yes, 2018
Daphnia reproduce by cyclic-parthenogenesis, where phases of asexual reproduction are intermitted by sexual production of diapause stages. This life cycle, together with environmental sex determination, allow the comparison of gene expression between ...
Fields, Peter   +5 more
core   +3 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

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

Progress in studies of sex determination mechanisms and sex control techniques in Cynoglossus semilaevis (half-smooth tongue sole) [PDF]

open access: yesFrontiers of Agricultural Science and Engineering, 2016
The Cynoglossus semilaevis (half-smooth tongue sole) is a marine flatfish of great commercial value for fisheries and aquaculture in China. It has a female heterogametic sex determination system (ZW/ZZ) and environmental factors can induce sex-reversal ...
Qian ZHOU,Songlin CHEN
doaj   +1 more source

Action of the Metalloproteinases in Gonadal Remodeling during Sex Reversal in the Sequential Hermaphroditism of the Teleostei Fish Synbranchus marmoratus (Synbranchiformes: Synbranchidae) [PDF]

open access: yes, 2018
Teleostei present great plasticity regarding sex change. During sex reversal, the whole gonadincluding the germinal epithelium undergoes significant changes, remodeling, and neoformation.However, there is no information on the changes that occur within ...
Antoneli, Fernanda   +3 more
core   +2 more sources

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

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