Below you can find the This deficiency of red blood cells is often discovered when blood tested for donation shows a hemoglobin deficiency Jeopardy Words Answer. The answer to This deficiency of red blood cells is often discovered when blood tested for donation shows a hemoglobin deficiency has 6 letters. This clue belongs to the A in science category and is part of Jeopardy Word Level 321. If you scroll near the bottom you will find other clues and answers part of level 321