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From: pi@hpcuhb.HP.COM (Paul Ilgenfritz)
Newsgroups: sci.bio
Subject: Organelle Reproduction
Message-ID: <5180001@hpcuhb.HP.COM>
Date: 10 Jul 90 16:31:43 GMT
Organization: Hewlett Packard, Cupertino
Lines: 14


I read a book on evolution which left me curious about how organelles in a
cell reproduce after a cell divides.  In particular, mitochondria,
ribosomes, and chloroplasts.  Do they divide themselves or are new ones
produced under direction from the nucleus?  The book implys that they
divide since they have their own DNA and RNA but it is never directly
stated.

The book, _Blueprints:__Solving_the_Mystery_of_Evolution_ (Maitland A.
Edey and Donald C. Johanson, Penguin Books), is very good for those who
are not experts in the field.  It may also be entertaining for the experts
since many fascinating anecdotes about the major figures in evolutionary
theory are included.  (e.g.  Darwin dragged his feet on publishing "Origin"
until he found out that another guy was about to scoop him.)