King Arthur's Half-Sister

This page is the CodyCross answer for the clue below from Extraordinary Creatures, Group 1587, Puzzle 2 (Hecatoncheires).

Question is: King Arthur's Half-Sister

and the answer is: MORGAN

Word Meaning:

MORGAN — (medicine) A unit for expressing the relative distance between genes on a chromosome.

Definitions from Wiktionary.

King Arthur's half-sister — CodyCross Answer | CodyCross Solutions