The fertilized egg has all the mRNA needed for proteins during rapid cell division. What instructions ... by polyadenylation in the cytoplasm of the oocytes after fertilization was still valid ...

This halving occurs through meiosis, a specialized type of cell division. During meiosis ... As a key step in this process, in an oocyte—the precursor of an egg—every pair of chromosomes ...

Meiosis II resembles a mitotic division, except that the chromosome ... The other three haploid cells are pinched off from the oocyte as polar bodies that contain very little cytoplasm.

Genetic mutations that affect early embryonic development, oocyte (egg cell ... and consequently cell division in the embryo fails after the two-cell stage, resulting in embryo fragmentation ...

Centrosomes are nonmembrane organelles and responsible for microtubule nucleation and organization. Centrosomal RNAs have been identified in diverse model systems and are known to regulate gene ...