✦ LIBER ✦
Heterochromosomes inMytilicola intestinalisSteuer (Copepoda)
✍ Scribed by Enzo Orlando
- Book ID
- 104628379
- Publisher
- Springer Netherlands
- Year
- 1973
- Tongue
- English
- Weight
- 264 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0016-6707
No coin nor oath required. For personal study only.
✦ Synopsis
The male and female diploid complements in Mflilicola are formed both by 22 chromosomes. Two different somatic metaphase figures are found: with two minute-size chromosomes and with three minute-size chromosomes. The study of meiosis has shown that the female sex is heterogametic. The chromosome complement is 10ii + XX in the male and 10ii + XY in the female. A bivalent formed by two different-length homologues, is to be seen in the female meiosis at pachytene; it shows, sometimes, a light positive hetero-pycnosis.