Dictionary » T » Tetraploid

Tetraploid

Organisms that possess 4 times more chromosomes than a haploid cell.tetraploid

nucleus, cell or organism that has four copies of the normal haploid chromosome set.


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Re: Autopolyploids and Allopolyploids

... some marker phenotypes, since current technology does not allow for estimating allele dosage from observed band intensities. As an example, for a tetraploid with four distinct codominant alleles showing polysomic inheritance 35 genotypes are possible but these fall under only 15 marker phenotypes. ...

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by javedshaikm
Wed Mar 14, 2012 4:38 pm
 
Forum: Genetics
Topic: Autopolyploids and Allopolyploids
Replies: 2
Views: 1417

Blood type changing spontaneously with a transplant?

... looking at my medical files right now that were from the 1st time i was sick and i can tell you this is straight from the files: She has ALL with tetraploidy. Chromosome analysis showed 2 near tetraploid clones. This is after i had a relapse: Chromosome analysis of the marrow was difficult due ...

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by bombermum
Mon May 02, 2011 11:37 am
 
Forum: Human Biology
Topic: Blood type changing spontaneously with a transplant?
Replies: 18
Views: 28984

Blood type changing spontaneously with a transplant?

the heredity depends on whether the tetraploid cells are all in your body or whether they are just curiosity in some part of your body. Were you diagnosed with tetraploidy before or after chemo? I would guess after, right? So it migth be caused ...

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by JackBean
Mon May 02, 2011 10:26 am
 
Forum: Human Biology
Topic: Blood type changing spontaneously with a transplant?
Replies: 18
Views: 28984

Blood type changing spontaneously with a transplant?

... answer. When i was diagnosed both times my chromosomes where not the 'normal' 23 pairs i actually had 92 so i was diagnosed with A.L.L with near tetraploid which really decreased my chances of survival down to 20% from 75%. My question is was i born with near tetraploid chromosones? Does having ...

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by bombermum
Mon May 02, 2011 9:38 am
 
Forum: Human Biology
Topic: Blood type changing spontaneously with a transplant?
Replies: 18
Views: 28984

Gene expression in G2 ? Upregulated because 4n?

... (ie, as well as G1/G0) so I would think that must mean genes are expressed, and, since S has doubled the number of chromosomes (ie, 4n - briefly tetraploid), does that mean all gene expression in G2 (assuming it happens!) is also upregulated???? Really sorry (and v. embarrased!) if this is a ...

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by Julie5
Mon Nov 29, 2010 6:07 pm
 
Forum: Molecular Biology
Topic: Gene expression in G2 ? Upregulated because 4n?
Replies: 5
Views: 1853
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