. Cytology, with special reference to the metazoan nucleus. Cells. VI CHONDRTOSOMES TOO by the spermatozoon. More serious perhaps is the fact that these egg chondriosomes may be very unevenly distributed amon^^st the bla^tomeres in cleavage (Duesberg, 1915). An unequal distribution of the chondrio- somes may be brought about experimentally in Hydractinia (Beckwith. 1914) by centrifuging the egg. .This does not prejudice the normal development of the larvae. The persistence of the chondriosomes which are undoubtedly present. Fig. 83. '''I! ihSdS^oml a1par, ; *, head (nucleus) of spermatozooD
. Cytology, with special reference to the metazoan nucleus. Cells. VI CHONDRTOSOMES TOO by the spermatozoon. More serious perhaps is the fact that these egg chondriosomes may be very unevenly distributed amon^^st the bla^tomeres in cleavage (Duesberg, 1915). An unequal distribution of the chondrio- somes may be brought about experimentally in Hydractinia (Beckwith. 1914) by centrifuging the egg. .This does not prejudice the normal development of the larvae. The persistence of the chondriosomes which are undoubtedly present. Fig. 83. '''I! ihSdS^oml a1par, ; *, head (nucleus) of spermatozooD. in the fertilized egg and embryo, and their development "'to certain pecific cell struetures of the adult, espeeially into â -"-'''^";"J muscle fibriUae, have been described by Meves (1908) and On sbe g (IQIO) for the chick, and also for some mammals. Accordmg to Arnold (1912) they give rise to the zymogen granules in the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Agar, Wilfred Eade, 1882-. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectcells, bookyear1920
