blastomeres


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blastomeres

The two cells produced when a zygote has completed its first division.
References in periodicals archive ?
In early development there is an apparent lack of a hyaline layer, irregularly arranged blastomeres, variable numbers of micromeres, and an absence of primary mesenchyme (Schroeder, 1981).
The implantation of damaged blastomeres, which often coexist along with intact ones, is lowered, as expected, rather than the intact ones (49).
PCR is a rapid, easy procedure for large scale sexing, and primers derived from many Y-specific sequences have been used to screen blood, meat and blastomere samples (Zeleny et al.
separated cells or blastomeres from seventeen two- to eight-celled preembryos and showed that, to a limited extent, they would divide and grow in culture.
fornicata, individual blastomeres may be pressure-injected with fluorescent lineage tracers, including fluorescent dextrans, at any stage of development (see Hejnol et al.
The first cleavages were observed 20 minutes after fertilization (AF), yielding cells with 02, 04, 08, 16, 32 and 64 blastomeres.
As an echinoid embryo develops, adjacent blastomeres are linked by adhesive bonds; in many cases, the developing embryo is also surrounded by an extracellular matrix, termed the hyaline layer.
Potentially, several blastomeres could be transferred to several enucleated oocytes and give rise to genetically identical offspring.
The MDA products of the other 6 blastomeres nontransferred were also used for All-in-One target region sequencing.
The Ciona embryo was historically regarded as a mosaic embryo, (26,27) in which different blastomeres that inherit different localized maternal materials assume different developmental fates.