Across
- 6. Chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number
- 8. Abnormally swollen or knotty
- 9. Bird of the open seas
- 10. (of a binary operation) independent of order; as in e.g. "a x b = b x a"
- 12. An impulsive scatterbrained manner
Down
- 1. Beneath the surface
- 2. A tax imposed on transfers of property by gift during the lifetime of the giver
- 3. Venus's girdle
- 4. (biology) having two nuclei
- 5. Bur marigolds
- 7. Fish that live on the sea bottom (particularly the commercially important gadoid fish like cod and haddock, or flatfish like flounder)
- 11. A fertile valley in southern California to the north of Los Angeles; includes many residential communities