Question

Write the DNA complement for 5'-ACCGTTAAT-3'. Be certain to label which is the \(5^{\prime}\) end and which is the \(3^{\prime}\) end of the complement strand.

Short answer

Answer: The DNA complement of the strand 5'-ACCGTTAAT-3' is 5'-TGGCAATT-3'.

Step-by-step solution

Understand DNA complementarity and base pairing rules

In a DNA molecule, the two strands are complementary, meaning that each base in one strand has a specific partner base in the other strand. The base pairing rules are: - Adenine (A) pairs with Thymine (T) - Cytosine (C) pairs with Guanine (G) We will apply these rules to find the complementary sequence for the given DNA strand.

Find the complementary bases

Now we will find the complementary base for each base in the given DNA strand (5'-ACCGTTAAT-3'): - A \(\rightarrow\) T - C \(\rightarrow\) G - C \(\rightarrow\) G - G \(\rightarrow\) C - T \(\rightarrow\) A - T \(\rightarrow\) A - A \(\rightarrow\) T - A \(\rightarrow\) T - T \(\rightarrow\) A

Write the complementary strand

After finding the complementary bases, we will write the complementary strand in the same order: Complementary strand: 5'-TGGCAATT-3'

Label the 5' and 3' ends of the complement strand

The complementary strand should have the same orientation as the given strand, where the first base corresponds to the 5' end and the last base corresponds to the 3' end: Complementary strand: \(5^{\prime}\)-TGGCAATT-\(3^{\prime}\) Therefore, the DNA complement of the given strand 5'-ACCGTTAAT-3' is \(5^{\prime}\)-TGGCAATT-\(3^{\prime}\).