Fine structure observations on the chromosomes in the spermatids of the Ascidian, Boltenia villosa.
D000818:Animals; D002816:Chordata, Nonvertebrate / Q000166:cytology; D002875:Chromosomes; D004247:DNA; D008297:Male; D008854:Microscopy, Electron; D013094:Spermatozoa / Q000166:cytology*
D004247:DNA