Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
xylene
xylenol
xylidine
xylo-
xylogenous
xylograph
xyloid
xylol
xylophagous
xylophone
xylose
xystus
-y (1)
-y (2)
-y (3)
Y (1)
Y (2)
Click to move down the list of words
Print Preview
See pronunciation key
Search for "Y-chromo..." in all of MSN Encarta
E-mail this entry
Blog about this entry on MSN Spaces
Download the MSN Encarta Right-Click Dictionary

Y-chromosome

Y-chro·mo·some (plural Y-chro·mo·somes)


noun 
Definition:
 
male sex chromosome: the sex chromosome that determines the male sex in humans and other mammals. The body cells of males each possess one Y chromosome paired with one X chromosome.

Advertisement

Also on Encarta
Englishtown: Learn English online
Our Partners
Also on MSN
Encarta Message Boards (© Rubberball/Jupiterimages)
MSN Shopping
Encarta RSS Feeds
© 2008 Microsoft