Visitor rating
Explains how mutations sometimes occur in genes to produce different traits in an individual and how the changed individual will survive and produce offspring like himself.
Encyclopedia Britannica, 331 N. LaSalle St., Chicago, IL 60610, Phone: (312)347-7159, Toll-free: 800-323-1229, Fax: (312)294-2104, URL: http://www.britannica.com
Available on VHS
Running time 15 minutes.
Copyright © 2024 Net Industries - All Rights Reserved