keepgoing
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Which of the following is a transversion mutation?
(A) The substitution of a GC base pair for an AT base pair
(B) The substitution of a CG base pair for a GC base pair
(C) The deletion of three base pairs
(D) The insertion of two base pairs
(E) All point mutations
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| vaibhavbora
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a ??
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VB
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| Karime
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A 
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| keepgoing
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| GoodGirl
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B .
Tricky . 
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| GoodGirl
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A is transition : purine- pyrimidine for different purine-pyrimidine
G-C for A-T
G and A are both purins . Pure As Gold
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| Karime
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Yeah!!!!!
Transvertion is susbstitution of purine for pyrimidine or viceversa.......Tricky
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| keepgoing
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good GG
its B.
A mutation is a permanent change in a DNA molecule, and single base pair changes are referred to as point mutations. A transversion is a point mutation in which a purine base is substituted for a pyrimidine base, and a pyrimidine is substituted for a purine (e.g., CG changed to GC or AT). A transition is a point mutation in which a purine is substituted for the other purine, and a pyrimidine is substituted for the other pyrimidine (e.g., GC changed to AT or AT changed to GC). Insertions and deletions can involve any number of base pairs.
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| GoodGirl
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Now we will remember it foooreeeverr....
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| keepgoing
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GoodGirl wrote:Now we will remember it foooreeeverr....
yessssssssssssssssssssssssssss for sure.
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| Karime
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Oh GG......."te adelantaste" (you went ahead first" ????...you beat me to the explanation??.....how can I say that???
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Eterea ……..“Hoc in loco mors succurrere vivis gaudet”……("In this place death comes joyfully to the aid of the living" )
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| GoodGirl
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I really like how FA explains it :
TransItion = Identical type
TransVersion = conVersion between types
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| dr_puma
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thanks for the revision
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