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leptotene

The cell cycle phase which is the first stage of prophase I in meiosis, and during which the chromosomes first become visible. [GOC:mtg_cell_cycle]
National Institutes of Health

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Meiotic Prophase I

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2004
2004
The cytogenetic systems of grasshoppers and locusts
The australian plague locust (2n=23 male, 24 female) is distinctive in possessing three pairs of two-armed, short autosomes (S9… 
2004
2004
The effect of X-irradiation on male meiosis in Schistocerca gregaria (Forskål)
The pattern of response of chiasma frequency to X-irradiation has been studied in germ line cells of male imagines of… 
1987
1987
Cycle of the Seminiferous Epithelium in the Grey-headed Fruit Bat, Pteropus poliocephalus
The seminiferous epithelial cycle of wild P. poliocephalus could be divided into eight stages on the basis of cellular… 
1977
1977
Formation of cytoplasmic synaptonemal-like polycomplexes at leptotene and normal synaptonemal complexes at zygotene in Ascaris suum male meiosis
A thread-like (more than 70 cm long) testis of Ascaris suum, when examined under the light and electron microscope, reveals the… 
1977
1977
Preleptotene chromosome condensation stage in human foetal and neonatal testes.
A preleptotene stage of chromosome condensation analogous to that already described in various plants and in the oocytes of… 
1974
1974
"Spontaneous" sex reversal in organ cultures of the embryonic male gonad of the bird.
The left embryonic testis of the bird (4–8 days of incubation) was organ cultured in medium that contained 10% foetal calf serum… 
Highly Cited
1972
Highly Cited
1972
Evolution of the nucleoli during oogenesis in Xenopus laevis studied by electron microscopy.
Xenopus laevis tadpoles and toads were killed at several ages. The structure of the nuclei of the germinal cells has been… 
1971
1971
The effect of X-irradiation on chiasma frequency in Chorthippus brunneus
THE formation of chiasmata during or immediately prior to pachytene in eukaryotic cells can no longer be thought of as an… 
1969
1969
Die Entstehung multipler Oocytennukleolen aus akzessorischen DNS-Körpern bei Gryllus domesticus
The early stages of female and male germ cells have been investigated in Feulgen squash preparations, in unfixed state with phase… 
1960
1960
The effects of chronic gamma irradiation on mouse testis.