Irregularities in Meiotic Prophase I
  • View Times: 22
  • |
  • Release Date: 2023-04-07
  • meiosis
  • gametogenesis
  • synapsis
  • synaptonemal complex
  • Ellobius tancrei
Video Introduction

This video is adapted from 10.3390/d15030364

Heredity and variability (“descent with modification” per Charles Darwin) are the two basic phenomena behind speciation. Chromosomes, as carriers of genetic material, provide the precise inheritance of DNA. Through homologous recombination, genetic diversity increases. In the event of a deleterious mutation, a gametogenesis fail occurs, mainly in meiosis through the checkpoint systems that eliminate defective cells during certain meiotic stages. This distinctive feature of speciation, in which divergence is ensured by chromosome mutations (changes in the structure and/or number of chromosomes), establishes postzygotic reproductive isolation due to the sterility or decreased fertility of hybrids.

Full Transcript
1000/1000

Confirm

Are you sure to Delete?
Cite
If you have any further questions, please contact Encyclopedia Editorial Office.
Matveevsky, S.; Kolomiets, O.; Bakloushinskaya, I.; Pankin, M.; Tambovtseva, V. Irregularities in Meiotic Prophase I. Encyclopedia. Available online: https://encyclopedia.pub/video/video_detail/688 (accessed on 03 October 2024).
Matveevsky S, Kolomiets O, Bakloushinskaya I, Pankin M, Tambovtseva V. Irregularities in Meiotic Prophase I. Encyclopedia. Available at: https://encyclopedia.pub/video/video_detail/688. Accessed October 03, 2024.
Matveevsky, Sergey, Oxana Kolomiets, Irina Bakloushinskaya, Mark Pankin, Valentina Tambovtseva. "Irregularities in Meiotic Prophase I" Encyclopedia, https://encyclopedia.pub/video/video_detail/688 (accessed October 03, 2024).
Matveevsky, S., Kolomiets, O., Bakloushinskaya, I., Pankin, M., & Tambovtseva, V. (2023, April 07). Irregularities in Meiotic Prophase I. In Encyclopedia. https://encyclopedia.pub/video/video_detail/688
Matveevsky, Sergey, et al. "Irregularities in Meiotic Prophase I." Encyclopedia. Web. 07 April, 2023.
ScholarVision Creations