No abstract available
MeSH terms
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Animals
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Biological Transport, Active
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Carbon Isotopes
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Chromatography, Paper
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Chromatography, Thin Layer
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Cytosine / analysis
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Cytosine / biosynthesis
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DNA / analysis*
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DNA / isolation & purification
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Embryo, Nonmammalian / analysis
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Embryo, Nonmammalian / metabolism
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Hydrolysis
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Methionine / antagonists & inhibitors
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Methionine / metabolism
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Methods
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Methylation*
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Sea Urchins
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Serine / metabolism
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Time Factors
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Tritium
Substances
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Carbon Isotopes
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Tritium
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Serine
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Cytosine
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DNA
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Methionine