Question

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

Short answer

Answer: The mRNA complement for the given DNA sequence is 5'-UGGCAAUUA-3'.

Step-by-step solution

Identify the DNA Nucleotides and Their mRNA Complements

In order to write the mRNA complement, we first need to identify each nucleotide in the given DNA sequence and its corresponding mRNA complement. Remember that mRNA uses uracil (U) instead of thymine (T) when pairing with adenine (A). The DNA sequence is 5'-ACCGTTAAT-3' The nucleotide pairs are: A (adenine) pairs with U (uracil) C (cytosine) pairs with G (guanine) G (guanine) pairs with C (cytosine) T (thymine) pairs with A (adenine)

Write the mRNA Complement

Now, we will write the mRNA complement by pairing each DNA nucleotide with its corresponding mRNA nucleotide. 5'-ACCGTTAAT-3' ||||||||| 5'-UGGCAAUUA-3'

Label the 5' and 3' Ends

Finally, we need to label the 5' end and the 3' end of the mRNA strand. Since mRNA is synthesized from the DNA template strand in the 5' to 3' direction, we can simply add the labels to the mRNA complement we just found. 5'-UGGCAAUUA-3' So, the mRNA complement for the given DNA sequence is 5'-UGGCAAUUA-3'.