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A mutation changes the original base seq...

A mutation changes the original base sequence of DNA, GATACCG to new sequecne GGTACCG. What is the type of mutatio?

A

Transition

B

Transversion

C

Translocation

D

Inversion

Text Solution

AI Generated Solution

The correct Answer is:
To determine the type of mutation that changes the original DNA base sequence from GATACCG to GGTACCG, we can follow these steps: ### Step 1: Identify the Original and Mutated Sequences - Original sequence: GATACCG - Mutated sequence: GGTACCG ### Step 2: Compare the Two Sequences - Compare each base in the original sequence with the corresponding base in the mutated sequence. - GATACCG - GGTACCG - The first position has G in both sequences. - The second position has A in the original and G in the mutated sequence. - The third position has T in both sequences. - The fourth position has A in both sequences. - The fifth position has C in both sequences. - The sixth position has C in both sequences. - The seventh position has G in both sequences. ### Step 3: Identify the Change - The only change occurs at the second position where A (adenine) is replaced by G (guanine). ### Step 4: Determine the Type of Mutation - Both A and G are purine bases. - A mutation where a purine is replaced by another purine is classified as a **transition mutation**. ### Conclusion The type of mutation that changes the original base sequence GATACCG to GGTACCG is a **transition**. ---
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