| XYY syndrome |
XYY syndrome is a rare chromosomal disorder that affects males. It is caused by the presence of an extra Y chromosome. Males normally have one X and one Y chromosome. However, individuals with this syndrome have one X and two Y chromosome. Affected individuals are usually very tall and thin. Many experience severe acne during adolescence. Additional symptoms may include antisocial or behavioral problems and learning disabilities. ...
출처: en.wikipedia.org/wiki/Xyy_syndrome
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| xylene |
The term xylenes refers to a group of 3 benzene derivatives which encompasses ortho-, meta-, and para- isomers of dimethyl benzene. The o-, m- and p- isomers specify to which carbon atoms (of the main benzene ring) are the 2 methyl groups attached. Counting the carbon atoms from any arbitrary point, and C1 being to the right of C2, and C2 being to the right to C3, and so on, the o- isomer has the IUPAC name of 1,2-dimethylbenzene. The m- isomer has the IUPAC name of 1,3-dimethylbenzene. ...
출처: en.wikipedia.org/wiki/Xylene
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| xylol |
The term xylenes refers to a group of 3 benzene derivatives which encompasses ortho-, meta-, and para- isomers of dimethyl benzene. The o-, m- and p- isomers specify to which carbon atoms (of the main benzene ring) are the 2 methyl groups attached. Counting the carbon atoms from any arbitrary point, and C1 being to the right of C2, and C2 being to the right to C3, and so on, the o- isomer has the IUPAC name of 1,2-dimethylbenzene. The m- isomer has the IUPAC name of 1,3-dimethylbenzene. ...
출처: en.wikipedia.org/wiki/Xylol
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| XYY syndrome |
a disorder in which a man has an extra Y chromosome, causing him to be unusually tall and to have behavioral disorders
출처: www.american-depot.com/services/resources_gl_x.asp
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| XYY syndrome |
Genetic condition in males with extra Y chromosome (in 1 in 1000 male births). Symptoms: tall stature (over 6'), may including sterility, developmental delay, learning problems.
출처: aspin.asu.edu/geneinfo/glos-x.htm
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