[Examination of genetic structures of sex cells of rats flown during their prenatal development on Cosmos-1514].
Male rats that were flown on Cosmos-1514 during their prenatal days 13 through 18 were investigated. The animals were sacrificed when they reached sexual maturity. Preparations were made of their testes for cytogenetic analysis: spermatocytes were at the stages of diakinesis--metaphase 1. The flown rats had 0.9% reciprocal translocations while the ground-based synchronous controls showed 0.5%. Exposure to space flight factors in combination had a mutagenic effect on gonocytes. However, the adverse effect of microgravity per se was not demonstrated unambiguously.
D K
DK
Benova
D000818:Animals; D005314:Embryonic and Fetal Development; D005260:Female; D008297:Male; D009154:Mutation; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains; D013026:Space Flight; D013094:Spermatozoa; D014178:Translocation, Genetic
Issledovanie geneticheskikh struktur polovykh kletok krys posle poletana biosputnike "Kosmos-1514" vo vremia ikh predrodovogo razvitiia.