Biol. Bull. Sign up for etocs!
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Biol Bull 117: 208-221. (October 1959)
© 1959 Marine Biological Laboratory
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by CONNELL, M. G.
Right arrow Search for Related Content
PubMed
Right arrow Articles by CONNELL, M. G.

NUCLEAR SIZES IN RANA MESONEPHROI

MARY GRACE CONNELL 1

1 Biology Department, The Catholic University of America, Washington, D. C.

1. The mesonephroi from 63 Rana sylvatica tadpoles and young adults were studied in sectioned material by means of a caryometric method for determination of nuclear volumes. Frequency histograms drawn from the data reveal three peak classes which, when arranged in series, give the progression, 1:1.5:2. These results are interpreted as being due to an interphasic growth preceding mitosis.

2. The results are discussed in terms of morphological increase and decrease in nuclear size, increase and decrease of DNA values, polyploidy, the "constancy" hypothesis, physiological activity and histological differentiation.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1959 by the Marine Biological Laboratory.