- #1
chembloke
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So here is my dilemma.
I'm looking at these two karyotypes.
Karyotype 1: http://www.biotechnologyonline.gov.au/images/contentpages/karyotype.jpg
Karyotype 2:http://www.contexo.info/DNA_Basics/images/karyotype1.gif
Now karyotype 1, each chromosome is depicted as 2 bars. In karytope 2, each chromosome is depicted as 2 Xs. Which one is it? Is the one bar a more condensed version of one X.
It's confusing me because many pictures of mitosis show the replication of a bar, then when duplicated its the sister chromosomes depicted as an X, and then they split again as a bar, like the image here:http://upload.wikimedia.org/wikipedia/commons/e/e0/Major_events_in_mitosis.svg.
The way this looks to me, a somatic cell appears haploid because the chromosome looks singular rather than a pair after it's divided. Now if that one bar was actually an X, then it would totally make sense to me.
Any help is greatly appreciated. Thanks.
I'm looking at these two karyotypes.
Karyotype 1: http://www.biotechnologyonline.gov.au/images/contentpages/karyotype.jpg
Karyotype 2:http://www.contexo.info/DNA_Basics/images/karyotype1.gif
Now karyotype 1, each chromosome is depicted as 2 bars. In karytope 2, each chromosome is depicted as 2 Xs. Which one is it? Is the one bar a more condensed version of one X.
It's confusing me because many pictures of mitosis show the replication of a bar, then when duplicated its the sister chromosomes depicted as an X, and then they split again as a bar, like the image here:http://upload.wikimedia.org/wikipedia/commons/e/e0/Major_events_in_mitosis.svg.
The way this looks to me, a somatic cell appears haploid because the chromosome looks singular rather than a pair after it's divided. Now if that one bar was actually an X, then it would totally make sense to me.
Any help is greatly appreciated. Thanks.
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