We analyze both the case when the underlying transformation group is projectable and hence induces an action on the image, and the case when only a proper subgroup of the entire group acts projectably.

Jeff No-Mates spends his evenings on the computer instead of going down to the pub.

He was a horse chaunter; he's a leg now.

With the exception of anelloviruses, bidnaviruses, spiraviruses, and some inoviruses, the replicative protein of ssDNA viruses is the so-called HUH endonuclease that cuts genomic DNA at a specific site and initiates rolling circle (or rolling hairpin) replication.