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Psychology Glossary and definitions. ("X")

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X Chromosome: The 23rd pair of chromosomes are the sex chromosomes. There are two types of sex chromosomes, an X and a Y. The X chromosome is a sex chromosome that both males and females have. Females have two X chromosomes, while males have one X and one Y Chromosome. In humans, the mother always contributes an X chromosome, while the father can contribute either an X (creating a female child) or a Y (creating a male child).

Xenophobia: This is an irrational fear of things that are foreign, especially foreign people. Someone with this disorder would be afraid and possibly even angry toward anything and anyone foreign.

XYY syndrome: This is an abnormal condition in which a male is born with an extra Y sex Chromosome. Although the evidence regarding this is not great, there is some evidence that this condition is associated with unusual aggressiveness.

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Contributors: raj_oct_2002	Created by raj_oct_2002, 08-14-2008 at 02:52 AM Last edited by raj_oct_2002, 08-14-2008 at 02:52 AM 0 Comments , 351 Views
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