Results 21 to 30 of about 808,838 (234)
Limb proportions show developmental plasticity in response to embryo movement
Animals have evolved limb proportions adapted to different environments, but it is not yet clear to what extent these proportions are directly influenced by the environment during prenatal development.
A. Pollard+6 more
semanticscholar +1 more source
Eccentricity excitation and merging of planetary embryos heated by pebble accretion [PDF]
Context: Planetary embryos can continue to grow by pebble accretion until they become giant planet cores. Simultaneously, these embryos mutually interact and also migrate due to torques arising from the protoplanetary disk. Aims: Our aim is to investigate how pebble accretion alters the orbital evolution of embryos undergoing the Type-I migration. In
arxiv +1 more source
Single-cell mapping of gene expression landscapes and lineage in the zebrafish embryo
Mapping the vertebrate developmental landscape As embryos develop, numerous cell types with distinct functions and morphologies arise from pluripotent cells.
Daniel E. Wagner+5 more
semanticscholar +1 more source
CRISPR/Cas9-mediated mutation of tyrosinase (Tyr) 3′ UTR induce graying in rabbit
The 3′ untranslated regions (UTRs), located at the end of mRNA molecules, are believed to play a role in RNA replication and/or protein translation. Mutations in the tyrosinase (Tyr) gene are known to cause recessive albinism in humans and other species.
Yuning Song+10 more
doaj +1 more source
Spermatogenesis can be affected by nutrition, which operates through normal physiological processes by changing the testicular mass and hormone levels profoundly.
Yanli Zhang+9 more
doaj +1 more source
An immunological approach of sperm sexing and different methods for identification of X- and Y-chromosome bearing sperm [PDF]
Separation of X- and Y-chromosome bearing sperm has been practiced for selection of desired sex of offspring to increase the profit in livestock industries. At present, fluorescence-activated cell sorter is the only successful method for separation of X-
Shiv Kumar Yadav+10 more
doaj +1 more source
Semen quality and fertility effectiveness of cloned buffalo (Bubalus bubalis) bulls
In India, due to a severe shortage of elite bulls, semen available from progeny-tested bulls covers a limited breedable population of buffalo. Animal cloning has proved beneficial in making identical genetic copies in the shortest possible time to meet ...
Manoj Kumar Singh+4 more
doaj +1 more source
IGF1-mediated human embryonic stem cell self-renewal recapitulates the embryonic niche
The signals regulating the establishment and maintenance of the pluripotent epiblast in human embryos are unclear. Here, the authors use a bioinformatics approach to identify the role of IGF1 in human embryo development, and from this, propose a culture ...
Sissy E. Wamaitha+16 more
doaj +1 more source
Background DNA methylation is an epigenetic regulatory form that plays an important role in regulating the gene expression and the tissues development.. However, DNA methylation regulators involved in sheep muscle development remain unclear.
Yixuan Fan+6 more
doaj +1 more source
Self-organisation of the human embryo in the absence of maternal tissues
Remodelling of the human embryo at implantation is indispensable for successful pregnancy. Yet it has remained mysterious because of the experimental hurdles that beset the study of this developmental phase.
M. Shahbazi+13 more
semanticscholar +1 more source