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fodog414 fodog414
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10 years ago
Using the adenine-thymine base pair in this DNA sequence
. . . ACCG . . .
. . . TGGC . . .

Part A
Give the sequence after a transition mutation.


Part B
Give the sequence after a transversion mutation.
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#1
Staff Member
Educator
10 years ago
HI

Perhaps this example will help

Quote
Give the sequence after a transition mutation, using the cytosine-guanine base pair in this DNA sequence
. . . CTAT . . .
. . . GATA . .

Answer

Quote
Transitions are interchanges of two-ring purines (A-->G) or of one-ring pyrimidines (C-->T): they therefore involve bases of similar shape.
Transversions are interchanges of purine for pyrimidine bases, which therefore involve exchange of one-ring and two-ring structures.
. . . CTAT . . .
. . . GATA . . .
the C switches with a T or the G switches with an A, in either case:
TTAT
AATA
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fodog414 Author
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#2
10 years ago
Thank you for the reply!! This was the same example I attempted to answer but it was wrong.. Any other ideas?
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