The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
A comparison of the ribosomal DNA's of Xenopus laevis and Xenopus mulleri: the evolution of tandem genes
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Colowick, S. P., Joshi, M. D., Jagannathan, & KAPLAN, N. O. (1966) · Cited by 26,137
A procedure for the isolation of deoxyribonucleic acid from micro-organisms
Marmur, J. (1961) · Journal of Molecular Biology · doi:10.1016/s0022-2836(61)80047-8 · Cited by 11,545
Bray, G. A. (1960) · Analytical Biochemistry · doi:10.1016/0003-2697(60)90025-7 · Cited by 7,476
Resolution of Multiple Ribonucleic Acid Species by Polyacrylamide Gel Electrophoresis*
Peacock, A. C., & Dingman, C. W. (1967) · Biochemistry · doi:10.1021/bi00858a033 · Cited by 860
Brown, D. D., & Dawid, I. B. (1968) · Science · doi:10.1126/science.160.3825.272 · Cited by 803
Self-citationMarkham, R., & Smith, J. D. (1952) · Biochemical Journal · doi:10.1042/bj0520552 · Cited by 779
Rate of Fixation of Nucleotide Substitutions in Evolution
LAIRD, C. D., McCONAUGHY, B. L., & McCARTHY, B. J. (1969) · Nature · doi:10.1038/224149a0 · Cited by 499
Molecular weights of coliphages and coliphage DNA
Freifelder, D. (1970) · Journal of Molecular Biology · doi:10.1016/0022-2836(70)90127-0 · Cited by 453
Polypeptide synthesis in Escherichia coli
Gilbert, W. (1963) · Journal of Molecular Biology · doi:10.1016/s0022-2836(63)80051-0 · Cited by 369
The neurosciences: Second study program
Walton, J. N. (1971) · Journal of the Neurological Sciences · doi:10.1016/0022-510x(71)90227-9 · Cited by 222
Cited by
Concerted and Birth-and-Death Evolution of Multigene Families
Nei, M., & Rooney, A. P. (2005) · Annual Review of Genetics · doi:10.1146/annurev.genet.39.073003.112240 · Cited by 1,298
Organization, Transcription, and Regulation in the Animal Genome
Davidson, E. H., & Britten, R. J. (1973) · The Quarterly Review of Biology · doi:10.1086/407817 · Cited by 451
Bowles, J., & McManus, D. P. (1993) · Molecular and Biochemical Parasitology · doi:10.1016/0166-6851(93)90199-8 · Cited by 317
Harris, D. J., & Crandall, K. A. (2000) · Molecular Biology and Evolution · doi:10.1093/oxfordjournals.molbev.a026308 · Cited by 288
Rabanal, F. A., Mandáková, T., Soto-Jiménez, L. M., Greenhalgh, R., Parrott, D. L., Lutzmayer, S., Steffen, J. G., Nizhynska, V., Mott, R., Lysak, M. A., et al. (2017) · Genome Biology · doi:10.1186/s13059-017-1209-z · Cited by 37
Metadata
- Authors
- Brown, D. D., Wensink, P. C., & Jordan, E.
- Venue
- Journal of Molecular Biology
- Publisher
- Elsevier BV
- Published
- 1972-01
- Volume
- 63
- Issue
- 1
- Pages
- 57-73
- ISSN
- 0022-2836 (ISSN-L)
- OpenAlex
- W2047484972
- Cited by
- 422
- References
- 20
- FWCI
- 49.86
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: A comparison of the ribosomal DNA's of Xenopus laevis and Xenopus mulleri: the evolution of tandem genes. https://app.cochat.ai/papers/10.1016/0022-2836(72)90521-9
- The paper
- Brown, D. D., Wensink, P. C., & Jordan, E. (1972). A comparison of the ribosomal DNA's of Xenopus laevis and Xenopus mulleri: the evolution of tandem genes. Journal of Molecular Biology. https://doi.org/10.1016/0022-2836(72)90521-9
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.