Saturday, April 30, 2011

body, Female, different, differently, sexlinked, cells, Genes, expressed
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sex body
by Toban Black

Question by Miyhkala:

Why are sex-linked genes expressed differently in different cells of a female body?



A.Different cells inherit different genes.
B.One of the two X chromosomes is inactivated at random in each cell.
C.Males do not have a functioning X chromosome after they are inactivated.
D.Sex-linked genes are expressed differently in males than in females.
can someone give me the answer and explain it?




Best answer:

Answer by Derek
B. One of the two X chromosomes is inactivated at random in each cell

The reason why is kind of hard to explain:

Basically, since cells in male organisms only have one X chromosome, each X chromosome must be able to produce an adequate amount of products (proteins, pigment, etc) for a cell to function properly. Since females have two X chromosomes, they would normally produce twice as much as is necessary. In some cases, this overproduction can be harmful. Thus, one of the X chromosomes will "shut down" and turn into what is call a Barr Body.

With one of the chromosomes turned off, the remaining X chromosome will express its trait within that cell, regardless of dominance. Since the decision of which chromosome turns into a Barr Body is random, the female will have different cells expressing different genes.

Sorry this was very wordy! Hope it helps though!





Know better? Leave your own answer in the comments!
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Here is Part 31 of my Super Mario Galaxy 2 Lets Play.WARNING:Lot of violence in this Part,if u do not like Sex Jokes/Bad Words (lots of F words),weird sex thingies,and Nudity.if u cant take anything of this then i recommend u to leave.U ARE WARNED!!!! I really starting to see why i hate this mission alot.Silver Stars plus Bee stage = Boring as hell!!!!! Mario goes to HoneyHop Galaxy to get a Power Star

Video Rating: 5 / 5








OMG..we had so much fun going to the park. We laughed as usual. made crude out of place sex jokes, and just had a great time. I wish I could be with these people more often.

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Friday, April 29, 2011

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by jdlasica

Question by Trentos the freshmaker:

Why did God give men a higher sex drive than women?



It is not fair that a man always has sexual urges while women don't need as much sex.




Best answer:

Answer by Josh J
TO TORTURE US!!!!





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Friday, April 22, 2011

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The Wing Girls is a weekly dating advice show for guys. Hosts Jet and Star give their opinions and how-to advice about relationships, sex, kissing, dating, and everything every guy wants to know about girls. New episodes every Wednesday! www.thewinggirls.com http ADD US ON FACEBOOK

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by bjornmeansbear

Question by Hitomi Love:

Why men become thirsty after a hot sex and need some beverage to drink?








Best answer:

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Thursday, April 21, 2011

Part, Story, 2009, awaz, qetta
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