Cytogenetic characteristics of 26 polyethylene glycol-induced human-hamster hybrid cell lines
Why this work is in the frame
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Bibliographic record
Abstract
A cytological analysis of 26 polyethylene glycol (PEG) induced human/hamster hybrid lines has shown that such lines are similar to inactivated Sendai virus (ISV) induced hybrids in respect to stability, retention of specific chromosomes, and cell selection. The evolution of stable hybrid cell lines carrying variable human chromosome complements depends upon a balance being established between the retained human and hamster genomes. This balance is a result of random loss of human and hamster chromosomes followed by selection of the fittest stem lines. A major mechanism ofchromosome loss may be fragmentation and elimination of acentric fragments. Twelve of the 26 lines had stabilized by the 30th passage, an incidence similar to that found with ISV-induced hybrids studied in this laboratory. Thus, PEG may be considered to be an ideal chemical for inducing somatic cell hybrids for genetic analysis.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it