Question

During the process of DNA replication, a complementary DNA strand is formed. What is the correct complementary DNA strand for the original strand of DNA below?

Original strand: ATA GTG CCC AAC GGT

ATA GTG CCC AAC GGT


AUA GUG CCC AAC GGU


TAT CAC GGG TTG CCA


UAU CAC GGG TTG CCU

Answer 1

To find the complementary strand of DNA for the original strand provided, we need to replace each base with its complementary base according to the base pairing rules of DNA:

- Adenine (A) pairs with Thymine (T)
- Thymine (T) pairs with Adenine (A)
- Cytosine (C) pairs with Guanine (G)
- Guanine (G) pairs with Cytosine (C)

Given the original DNA strand: **ATA GTG CCC AAC GGT**

Let's determine the complementary strand:
- A -> T
- T -> A
- A -> T
- G -> C
- T -> A
- G -> C
- C -> G
- C -> G
- C -> G
- A -> T
- A -> T
- C -> G
- G -> C
- G -> C
- T -> A

Putting this together, the complementary strand becomes:
**TAT CAC GGG TTG CCA**

Therefore, the correct complementary DNA strand for the original strand of DNA is:
**TAT CAC GGG TTG CCA**.