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Science 6 February 1981:
Vol. 211. no. 4482, pp. 588 - 590
DOI: 10.1126/science.7455698
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Articles

Science, Vol 211, Issue 4482, 588-590
Copyright © 1981 by American Association for the Advancement of Science

articles

Two classes of single-stranded regions in DNA from sea urchin embryos

MS Wortzman and RF Baker

Native DNA from sea urchin embryos contains single-stranded regions (gaps) of up to 3000 nucleotides. The longer gaps (more than 1400 nucleotides) are nonrandomly distributed and are rich in histone gene sequences, other moderately repetitive sequences, and polypyrimidines. The shorter gaps are associated with DNA replication. A method for isolation of the two classes of single-stranded DNA pieces is reported.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)