A re-examination of the case for homology between the X and Y chromosomes of mouse and man
β Scribed by Terry Ashley
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 676 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0340-6717
No coin nor oath required. For personal study only.
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There has long been an assumption that normal disjunction of the sex chromosomes of all mammals is assured by synapsis of a region of homology between the X and Y and that an 'obligatory' crossover with chiasmata formation follows. Evidence is presented here that much (if not all) observed synapsis
The long arms of the X and Y chromosomes of the mosquito Anopheles atroparvus (2n equals 6) are equal in length, synchronous in their late DNA replication and have homologous G AND Q bands. This indicates that differentiation of the two sex chromosomes was the consequence of a single deletion of an