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Document Type

Research

Abstract

Almost complete sterility may be induced by imperfect fertilization. Resulting male offspring very rarely produce daughters which are almost always sterile. Complete sterility of males due to lack of external genitalia exists in one strain, which is reproduced from sisters and fertile brothers. A previously fertile strain mutated so that females lay inviable eggs. Rarely an egg will hatch and from the resulting insect the strain is perpetuated. Males of this strain are of normal fertility.

Publication Date

1924

Journal Title

Proceedings of the Iowa Academy of Science

Volume

31

Issue

1

First Page

406

Last Page

406

Copyright

©1924 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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