the number of homologous sets of chromosome in human...

Discussion of all aspects of cellular structure, physiology and communication.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
Posts: 12
Joined: Tue Feb 27, 2007 12:54 pm

the number of homologous sets of chromosome in human...

Post by junbumkim » Wed Apr 25, 2007 1:42 pm

Just trying to get the definition clear, so tell me if I have this right..

So human has 22 pair of homologous sets of chromosomes, that are non-sex determining. And the last pair determines sex. In total, we have 23 pairs of chromosomes.

So this would be correct for man, but incorrect for women, wouldn't it?
Since XX defines female, women have 23 pair of homologous sets of chromosomes..

and ploidy is the number of chromosomes that are homologous to each other, right?
So human has two chromoseoms that are homologous to each other for every biological feature..

Am I correct?

Posts: 1278
Joined: Thu Mar 02, 2006 5:29 pm
Location: New York, USA

Post by Darby » Wed Apr 25, 2007 2:42 pm

When this is defined, your point about the genders, while true, isn't factored in.

Possibly because Barr bodies prevent expression of both X chromosomes in each cell, possibly just because it's easier to not split the definition too much.

User avatar
Inland Taipan
Inland Taipan
Posts: 2322
Joined: Sun Jan 02, 2005 12:44 pm
Location: Turkey

Post by Poison » Wed Apr 25, 2007 2:45 pm

I couldn't understand your question exactly but X and Y have common regions that make them act homologous if this is what you are trying to ask.
It matters not how strait the gate
How charged with punishment the scroll
I am the Master of my fate
I am the Captain of my soul.

Post Reply

Who is online

Users browsing this forum: No registered users and 8 guests