Wadhwa R, Sharma SP. Age-associated changes in nucleic acid content in Zaprionus paravittiger.
Arch Gerontol Geriatr 1985;
4:157-62. [PMID:
2412502 DOI:
10.1016/0167-4943(85)90029-9]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/1985] [Revised: 03/20/1985] [Accepted: 03/21/1985] [Indexed: 12/31/2022]
Abstract
The mean life span of male and female Zaprionus paravittiger reared on corn meal agar medium at 26 +/- 2 degrees C was found to be 35 and 40 days, respectively. The DNA content showed a perpetual decline in both sexes. The RNA content also showed a continuous decline in males while in females a significant leap is found during the first 17 days followed by a steady decline until the 41st day. The study supports the concept that protein synthesis (RNA-DNA) and thus the biological expression during different phases of life, are controlled at the DNA-RNA level.
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