Abstract
RECENT investigations have demonstrated a wide range of deoxyribonucleic acid (DNA) base compositions which correlate well with other taronomic criteria in both bacteria1–4 and protozoa5,6. The available data for metazoans are less extensive4,7. However, a considerable variation in DNA base composi ions is found among the porifera8, and the published analyses for three species of molluscs4,9 indicate the probability of a range of compositions in that phylum. This communication describes work on several other species of molluscs. DNA was isolated from sperm on testes using a modification10 of Marmur's procedure11. Base compositions were estimated from density gradient centrifugation studies13 and from thermal denaturation temperatures12. The results are recorded in Table 1.
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SMITH, M., QUAYLE, D. Deoxyribonucleic Acids of Marine Mollusca. Nature 200, 676 (1963). https://doi.org/10.1038/200676a0
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DOI: https://doi.org/10.1038/200676a0
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