Abstract
Summary
The content and concentration of nucleic acids in the mouse mammary gland were examined at various stages of secretory development. The total content of DNA and RNA attained maximal values on day 7 of lactation. The highest concentration of RNA occurred on days 7 to 10, whereas that of DNA occurred on day 1 of lactation. The decline in secretory activity of the mammary gland at the end of lactation apparently results from a decrease both in the number of cells and in their functional capacity.
Get full access to this article
View all access options for this article.