Example sentences for: achiasmatic

How can you use “achiasmatic” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • The respective contributions of chiasmatic and achiasmatic (distributive) modes of chromosome segregation can be studied in organisms with naturally-occurring achiasmatic chromosomes [ 8 ] , in cells harboring non-recombined artificial chromosomes [ 9 ] , and in achiasmatic mutants [ 10 ] . Among achiasmatic mutants, those lacking the Spo11 (Rec12) protein are of particular interest because Spo11 has a key role in the initiation of recombination [ 11 ] .

  • In the absence of crossover recombination (chiasmata) and a backup distributive (achiasmatic) system for chromosome segregation, MI nondisjunction should occur and 100% of any resulting diploid spore colonies would be heterozygous for centromere linked markers (Figure 5B).

  • In the presence of Rec12-Y98F protein the checkpoint would be active, thereby allowing the achiasmatic chromosomes sufficient time to reorient and undergo distributive segregation.

  • Rec12 is required for chiasmatic and achiasmatic chromosome segregation during MI; and its active site tyrosine is required for chromosome segregation during MII

  • A 250-fold reduction in recombination would leave less than 0.1 crossovers per chromosome, so all three chromosomes in most of the rec12 mutant meioses are achiasmatic.


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