The mating process is one of the most important mechanisms for maintaining genetic variation in natural populations. The emergence of sexual reproduction turned out to be the most important ...

Conjugation (or mating) of ciliates is a unique phenomenon among living beings. They have sex not for reproduction or pleasure — they seek to increase genetic variation. Scientists from St Petersburg ...

(via Journey to the Microcosmos) How do stentors make more stentors? Does Paramecium reproduce sexually or asexually? Find out on this week's journey as we explore the ways the microcosmos reproduce!

CYTOGAMY: A NEW SEXUAL PROCESS IN JOINED PAIRS OF PARAMECIUM CAUDATUM TWO sexual processes have been described for Paramecium in which three micronuclear (pregamic) divisions lead to synkaryon ...

Why is sex so popular? The question of why so many organisms reproduce sexually has mystified evolutionary biologists since before Darwin, who wrote that "The whole subject is as yet hidden in ...

THE blastogenic hydrocarbons are photodynamic; therefore, in order to observe their action on living cells, cultures must be kept in the dark, and examined in light not shorter than 410 µµ. Under ...