1. Sex determination of the onion fly,Hylemya antiqua (Meigen)

   • L. Vosselman

   OriginalPaper Pages: 201 - 218

2. The relation of radiation sensitivity to pronuclear chromosome structure

   • Norbert Israelewski

   OriginalPaper Pages: 219 - 232

3. Silver staining of the lampbrush chromosomes ofTriturus cristatus carnifex

   • Jennifer M. Varley
   • Garry T. Morgan

   OriginalPaper Pages: 233 - 244

4. Patterns of silver staining in cells of six-day blastocyst and kidney fibroblast of the domestic rabbit

   • Patricia A. Martin-DeLeon
   • M. Eileen Fleming
   • Dorene L. Petrosky

   OriginalPaper Pages: 245 - 252

5. Relative DNA content of normal and sex-ratio distorting spermatozoa of the mosquito,Aedes aegypti (L.)

   • M. E. Newton
   • D. I. Southern
   • R. J. Wood

   OriginalPaper Pages: 253 - 261

6. Folded chromosomes in non-cycling yeast cells

   • R. Pi∼non

   OriginalPaper Pages: 263 - 274

7. A pepsin-revealed material possibly related to chromosomal banding

   • Wilson Byarugaba

   OriginalPaper Pages: 275 - 283

8. Localization of late replicating DNA and nuclear membrane

   • M. G. Galli
   • D. Chiatante
   • D. Mariani

   OriginalPaper Pages: 285 - 291