Answer
DNA and RNA are made up of different types of nucleotides linked together. Each nucleotide contains a sugar, a phosphate group, and a nitrogenous base. For the DNA strand AATTGC, the complementary mRNA strand is UUAACG. mRNA serves as a vital carrier of genetic information, conveying it from the DNA in the nucleus to the ribosomes for protein synthesis. The sequence of mRNA complements the corresponding sequence of a specific DNA segment. Nucleotides, the building blocks of nucleic acids, consist of a sugar, a phosphate, and a base. There are two categories of nitrogenous bases: purines and pyrimidines; DNA includes Adenine and Guanine (purines) and Thymine and Cytosine (pyrimidines) with pairings of Adenine with Thymine and Guanine with Cytosine. In RNA, Thymine is replaced by Uracil, leading to base pairings of Adenine with Uracil and Guanine with Cytosine. Given the DNA sequence A A T T G C, its complementary mRNA sequence is U U A A C G, as outlined in the referenced example. Be aware that Uracil pairs with Adenine, and Thymine pairs with Adenine in DNA, while Guanine continues to pair with Cytosine. For more details, refer to the linked resource.
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