Nurse S Role
Mostrando 13-16 de 16 artigos, teses e dissertações.
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13. Sister-Chromatid Misbehavior in Drosophila Ord Mutants
In Drosophila males and females mutant for the ord gene, sister chromatids prematurely disjoin in meiosis. We have isolated five new alleles of ord and analyzed them both as homozygotes and in trans to deficiencies for the locus, and we show that ord function is necessary early in meiosis of both sexes. Strong ord alleles result in chromosome nondisjunction
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14. Evidence for physiological function of epidermal growth factor: pregestational sialoadenectomy of mice decreases milk production and increases offspring mortality during lactation period.
Female virgin mice, whose submandibular glands were removed, underwent normal pregnancy and delivery. During the nursing period, however, a substantial number of pups born to and nursed by sialoadenectomized mothers died within 5 days of birth, whereas this did not occur among pups born to normal mothers. Cross-foster nursing experiments indicated that the c
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15. The Drosophila tom retrotransposon encodes an envelope protein.
The tom transposable element of Drosophila ananassae is mobilized with high frequency in the germ line of females from the ca; px strain, and its insertion results in mutations that show almost exclusively dominant eye phenotypes. tom is a long terminal repeat-containing retrotransposon that encodes three different open reading frames (ORFs). It is expressed
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16. Tissue localization of Drosophila melanogaster insulin receptor transcripts during development.
The Drosophila melanogaster insulin receptor (Drosophila insulin receptor homolog [dIRH]) is similar to its mammalian counterpart in deduced amino acid sequence, subunit structure, and ligand-stimulated protein tyrosine kinase activity. The function of this receptor in D. melanogaster is not yet known. However, a role in development is suggested by the obser