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Aneuploid

Aneuploid

(Science: biology) The characteristic of having a chromosome complement that is not an exact multiple of the haploid number, with either fewer or more than the normal number of chromosomes in the cell. Chromosomes may be present in multiple copies (e.g. Trisomy) or one of a homologous pair may be missing in a diploid cell. This is an abnormal cell.


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Re: aneuploidy and polyploidy

... late response...but I'm procrastinating so I'll attempt to answer your question nonetheless from my recent, rather basic understanding of studying aneuploidy for the past 3 hours (am doing a research assignment on it...and am fascinated!) Anyway, enough gabbling! :lol: :lol: :lol: I would suspect ...

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by carmodyf
Thu Oct 11, 2012 4:36 am
 
Forum: Cell Biology
Topic: aneuploidy and polyploidy
Replies: 2
Views: 4355

Re: Genetic Questions - please help!

... give individuals any selective advantage,thus in a large gene pool. if the organism dies,the mutation will not be passed down. (Q5) Humans with aneuploid karyotypes occur but are non-viable. Why is this?? aneuploidy refers to certain chromosomes are represented in an usual number of chromosomes ...

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by chenwithasterisk
Fri Jan 05, 2007 5:24 am
 
Forum: Genetics
Topic: Genetic Questions - please help!
Replies: 4
Views: 5068

Genetic Questions - please help!

... What evidence is there that states that Downs syndrom is a result of non-disjunction at oogenesis rather than spermatogenesis? (Q5) Humans with aneuploid karyotypes occur but are non-viable. Why is this?? I know there are quite a few questions, but if you could answer any, it would be a great ...

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by Miss_Me
Wed Jan 03, 2007 7:05 pm
 
Forum: Genetics
Topic: Genetic Questions - please help!
Replies: 4
Views: 5068

XYY possible?

... No, because triploid refers only to the full complement of an added haploid genome (ie 3n or 69 chromosomes); if you have one extra Y you're just aneuploid but not triploid. Note that a triploid state is actually euploid because it still has a normal ploidity. Again, I stand by what i've stated.... ...

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by LilKim
Wed Aug 23, 2006 6:47 am
 
Forum: Genetics
Topic: XYY possible?
Replies: 17
Views: 9024

XYY possible?

... No, because triploid refers only to the full complement of an added haploid genome (ie 3n or 69 chromosomes); if you have one extra Y you're just aneuploid but not triploid. Note that a triploid state is actually euploid because it still has a normal ploidity.

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by weesper
Wed Aug 23, 2006 6:18 am
 
Forum: Genetics
Topic: XYY possible?
Replies: 17
Views: 9024
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