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Recent advances in cytology
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The article was published on 1932-01-01 and is currently open access. It has received 1048 citations till now. The article focuses on the topics: Cytology.read more
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Cytogenetic analysis of unfertilized human oocytes
TL;DR: The data suggest that the chromatids arose as a result of premature centromere division at meiotic I, and that this may be a major mechanism for trisomy formation rather than non-disjunction of whole bivalents at meiosis I, as generally believed.
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Multivalent frequency and seed fertility in raw and evolved tetraploids of Brassica campestris var. toria
M. S. Swaminathan,K. Sulbha +1 more
TL;DR: From the observation that coincident with an increase in seed fertility there is a tendency towards a decrease in multivalent frequency in autotetraploidToria, it is suggested that the relationship between these two processes may not be wholly casual.
Journal ArticleDOI
The Origin and Behaviour of Chiasmata, VIII
TL;DR: The two k fragments in a plant of Secale cereale with 16 chromosomes fail to pair in a proportion of pollen mother-cells and there is a negative correlation between the chiasma frequency in the major chromosomes and that in the fragment pair of the saure nucleus.
Journal ArticleDOI
Cytological Studies in Saccharum and Allied Genera
TL;DR: S. robustum as it is now known is basically a species of two cytological types, those with 2n=60 chromosomes, and those with2n=80 chromosomes, which are known from Borneo, the Celebes, and Australian New Guinea.
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A rigorous measure of genome-wide genetic shuffling that takes into account crossover positions and Mendel's second law.
TL;DR: A rigorous measure of genome-wide shuffling that takes into account r¯, the probability that a randomly chosen pair of loci shuffles their alleles in a gamete, finds that r¯ in humans is close to its maximum possible value of one-half and that this high value is largely due to independent assortment.