A protein domain named for this specific body part contains seven cysteines and one histidine coordinating two zinc atoms, and is found in many E3 ubiquitin ligases. For 10 points each:
[10m] Name this body part that was once thought to be linked to the heart by the “vena amoris.” The length of this body part is the denominator of a ratio that has been pseudoscientifically linked to fetal testosterone exposure.
ANSWER: ring finger [or the fourth finger; or 4D; or the fourth digit; or the RING finger domain; or the Really Interesting New Gene finger domain; prompt on finger or digit]
[10e] The “vena amoris” justified the placing of wedding rings on the fourth finger of a woman’s left hand, a practice codified in an edict by Edward VI and mentioned in this devotional text used in Anglican services.
ANSWER: Book of Common Prayer [or BCP]
[10h] The practice of doctors scooping ground eye-salves with their ring fingers is attested in the eleventh book of this 7th century text, concerning “the human being and its portents.” Sections of its twelfth book, which is about “animals,” were illustrated in the Worksop, Ashmole, and Aberdeen Bestiaries.
ANSWER: Etymologiae [or The Etymologies; or Origines; or Origins; or Orig.] (by Isidore of Seville)
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