Articles tagged with Metaphase
Researchers at MPI-CBG found that modern human variants cause longer metaphase and fewer chromosome segregation errors in neural stem cells, leading to more efficient brain development. This suggests that some aspects of modern human brain evolution may be independent of brain size.
Scientists have identified a crucial protein called SKP1 that drives a key transition step in male meiosis, the process resulting in sperm production. Without this protein, meiosis cannot proceed, and defects can occur, leading to male infertility, pregnancy loss, or birth defects.
The study proposes a novel molecular mechanism for detecting chromosome alignment on the mitotic spindle, preventing errors in cell division. The checkpoint mechanism ensures irreversible progression through the cell cycle, blocking further progress until problems are corrected.