If one strand of DNA has the sequence AATCCGTAGCTC, what would be the sequence of its complementary strand?
To determine the sequence of the complementary strand of DNA, you need to understand the base pairing rules. In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). So, to find the complementary strand, you would simply replace each base with its corresponding pair.
Given the strand with the sequence: AATCCGTAGCTC
The complementary sequence would be:
TTAGGCATCGAG
Explanation of the process:
1. Replace each A with T, as they are complementary bases.
Original: AATCCGTAGCTC
Complementary: T
2. Replace each T with A, as they are complementary bases.
Original: AATCCGTAGCTC
Complementary: TA
3. Replace each C with G, as they are complementary bases.
Original: AATCCGTAGCTC
Complementary: TAGG
4. Replace each G with C, as they are complementary bases.
Original: AATCCGTAGCTC
Complementary: TAGGC
5. The final complementary sequence is: TTAGGCATCGAG