chiasma interference The non-random frequency of more than one chiasma in a bivalent segment during meiosis. If the frequency of occurrence is higher than that expected from purely chance events, then it is termed negative chiasma interference; if the frequency is lower than expected, it is referred to as positive chiasma interference.

chiasma interference The non-random frequency of more than one chiasma in a bivalent segment during meiosis. If the frequency of occurrence is higher than that expected from purely chance events then it is termed negative chiasma interference; if the frequency is lower than expected, it is referred to as positive chiasma interference.