The development and replacement of teeth in the frog R a n a temporaria is analyzed by dividing the life cycle of the tooth into a number of stages. These stages are identified by the examination of alizarin whole mounts. The dentition in this species is fairly complete and the percentage of functio
MHC zygosity in the frog,Rana temporaria
✍ Scribed by Barbara Płytycz
- Publisher
- Springer-Verlag
- Year
- 1984
- Tongue
- English
- Weight
- 564 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0093-7711
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✦ Synopsis
The major histocompatibility complex (MHC) zygosity of the fieldcollected frogs, Rana temporaria, was detected by progeny testing. Groups of sibling tadpoles were grafted with intrafamilial tail-tip allografts and the ratio of rapidly rejected allografts to slowly rejected ones was estimated. Twenty-five percent of parental frogs appeared to be MHC homozygotes. Thus, MHC homozygosity in natural frog populations seems to be considerably higher than in wild mouse populations.
📜 SIMILAR VOLUMES
## Abstract The thymus of the adult frog __Rana temporaria__ is generally small each winter and grows through the spring to reach a large size each summer. The summer thymus has a cortex full of small thymocytes and a medulla in the centre, whereas the winter atrophy is manifested by a loss of dist