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Record W1581999026 · doi:10.1007/978-3-319-28755-3_13

Exons and Introns

2016· book-chapter· en· W1581999026 on OpenAlexaff
Donald R. Forsdyke

Bibliographic record

VenueEvolutionary Bioinformatics · 2016
Typebook-chapter
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicRNA and protein synthesis mechanisms
Canadian institutionsQueen's University
Fundersnot available
KeywordsIntronGeneBiologyGenomeExonGeneticsComputational biologySequence (biology)Evolutionary biology

Abstract

fetched live from OpenAlex

If genome space is finite with little, if any, DNA that is not functional under some circumstance , then potential conflicts between different forms of genomic information must be resolved by appropriate trade-offs. These trade-offs sometimes require that genes accommodate spacers, introns, and simple sequence elements. The nature and extent of the trade-offs varies with the biological species. Study of trade-offs is facilitated in genes or species where demands are exceptional (e.g. genes under positive selection pressure to adapt proteins, genes that overlap, and species under extreme downward or upward GC -pressures). Spacers and introns are likely to have existed early in evolution because they are preferential sites for the stem-loop structures that are necessary for initiating recombination and, hence, error-detection and correction. Genes, as recognized today, would have arisen in sequences already adapted for these purposes. Purine-loading pressure would have supported protein-pressure in provoking the splitting into introns of what might otherwise have been large exons. From this perspective we can understand why the genes of the malaria parasite are extraordinarily long, and we can identify the potential Achilles heel of the AIDS virus as the dimer-linkage sequence that is essential for the copackaging of disparate genomes, so allowing recombination repair in a future host. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.032
Threshold uncertainty score0.108

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.002
Scholarly communication0.0030.004
Open science0.0010.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0320.020

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.009
GPT teacher head0.203
Teacher spread0.194 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations6
Published2016
Admission routes1
Has abstractyes

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