Yes, alleles is a Scrabble word!

...and is worth 7 points in Scrabble, and 10 points in Words with Friends

alleles

Noun

1. (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character

What Scrabble words can I make with the letters in alleles?

6 Letter Words

allees
allele

5 Letter Words

allee
easel
lalls
lease
selle

4 Letter Words

alee
ales
alls
ease
eels
ells
else
lall
lase
leal
leas
lees
sale
sall
seal
seel
sell

Search for more Scrabble words

Words that can be created with an extra letter added to alleles:

B:sellable