If monogeny is determined exclusively by a cytoplasmic factor, then it is easy to see that the factor will either die out (if it causes arrhenogeny) or will become fixed and thereby sterilize the population (if it causes thelygeny).
1882: In 1430 King's College, Cambridge, sells the pigeon's dung from its dovecot for 2s. 8d., in 1461 for 3s., in 1537 for 4s. — James Edwin Thorold Rogers, A History of Agriculture and Prices in England, Volume 4, p. 412.
CBC: Yellowknife vote saves Robertson Headframe for now
Let me say on behalf of myself and my colleagues that we are most appreciative for your leadership, both as the Chairman of the Subcommittee, but equally appreciative of your leadership and preparement of the National Guard and Reserve Components Caucus, for what you and your colleagues on the Committee do for us in supporting the men and women who serve in America’s Guard and Reserve.
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