4. Briefly compare/contrast euploidy & aneuploidy aneuploidy & polyploidy triplo
ID: 189483 • Letter: 4
Question
4. Briefly compare/contrast euploidy & aneuploidy aneuploidy & polyploidy triploidy & trisomy (2 points) Given this sequence (of course the DNA is double stranded, but I'm only showing one strand), wil it tend to cause a deletion to form, or an inversion? Diagram how it (either the deletion or inversion) will happen. Figures 6.13 and 6.23 might be useful. xxxxxxxcatatgctttcag (another five hundred or so letters) catatgctttcagxxxxxxxxx (2 points) Ditto, using this sequence caseegstieassts oo len gactttcgtatacxxxxxxxxxxxExplanation / Answer
Difference between euploidy and aneuploidy
Euploidy
Aneuploidy
1.
The whole set of chromosomes is gained or lost
One or more chromosome is gained or lost.
2.
Ploidy level is changed
Ploidy level remains the same
3.
AA --> A or AAA or AAAA
AA --> AA+1 or AA+2 or AA+1+1
4.
Example: Wheat, Triticum aestivum (2N = 6x = 42)
Example: Down syndrome (Trisomy of 21st chromosome) in humans.
No deletion or inversion in the DNA
No deletion or inversion in the DNA
Difference between aneuploidy and polyploidy
Aneuploidy
Polyploidy
1.
One or more chromosome is gained or lost.
The Whole set of chromosomes is gained.
2.
Ploidy level remains the same
Ploidy level increases
3.
AA --> AA+1 or AA+2 or AA+1+1
AA --> AAA or AAAA
4.
Example: Down syndrome (Trisomy of 21st chromosome) in humans.
Example: Wheat, Triticum aestivum (2N = 6x = 42)
No deletion or inversion in the DNA
No deletion or inversion in the DNA
Difference between euploidy and aneuploidy
Triploidy
Trisomy
1.
Three set of chromosomes
One chromosome is gained
2.
Ploidy level is triploid
Ploidy level is diploid with any one chromosome have three chromatids
3.
AAA
AA+1
4.
Example: Banana and seedless watermelons
Example: Down syndrome (Trisomy of 21st chromosome) in humans.
No deletion or inversion in the DNA
No deletion or inversion in the DNA
Euploidy
Aneuploidy
1.
The whole set of chromosomes is gained or lost
One or more chromosome is gained or lost.
2.
Ploidy level is changed
Ploidy level remains the same
3.
AA --> A or AAA or AAAA
AA --> AA+1 or AA+2 or AA+1+1
4.
Example: Wheat, Triticum aestivum (2N = 6x = 42)
Example: Down syndrome (Trisomy of 21st chromosome) in humans.
No deletion or inversion in the DNA
No deletion or inversion in the DNA
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