Or click on the first letter of the article:
A B
C D
E F
G H
I J
K L
M N
O P
Q R
S T
U V
W X
Y Z
X (in genetics)
X (in genetics): Although the letter X can be used as a symbol in various ways (such as with X-rays, the X-axis of a graph, etc.), "the X " in genetics and medicine today usually refers to the X chromosome.
The X is the sex chromosome that is found twice in chromosomally normal females and singly along with a Y chromosome in chromosomally normal males. The complete chromosome complement consisting of 46 chromosomes including the two sex chromosomes is thus conventionally written as 46,XX for chromosomally normal females and 46,XY for chromosomally normal males.
Last updated on 05/21/2008
© 1996-2004 MedicineNet, Inc. All rights reserved.
Information on this web site is provided for informational purposes only and
is not a substitute for professional medical advice. You should not use the
information on this web site for diagnosing or treating a medical or health
condition. You should carefully read all product packaging. If you have or
suspect you have a medical problem, promptly contact your professional
healthcare provider.
Statements and information regarding dietary supplements have not been
evaluated or approved by the Food and Drug Administration. Please consult
your healthcare provider before beginning any course of supplementation or
treatment.
|
