THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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UGG CAU CCU GCU CCC
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UGG CAT CCU GCT CCC
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TGG CAT AAT GCT CCC
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UGG CAU AAU GCU CCC
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Detailed explanation-1: -mRNA is formed as a complementary strand to one of the two strands of the DNA. Three of the four nitrogenous bases that make up RNA-adenine (A), cytosine (C), and guanine (G)-are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine.
Detailed explanation-2: -Step 1: Starting on the left, read the first letter in the DNA sequence and write down the complementary base. The first base in this sequence is “A", which pairs with “T", so the first letter in our complementary sequence will be “T". Step 2: Continue from left to right until the complementary sequence is complete.
Detailed explanation-3: -In this example, the tRNA anticodon for UGG is ACC. With RNA, the nucleotide base adenine always pairs with uracil (A and U), and guanine always pairs with cytosine (G and C). Some other codon and anticodon examples are: Methionine: the mRNA codon is AUG, and the tRNA anticodon is UAC.
Detailed explanation-4: -Complementary sequence: Nucleic acid sequence of bases that can form a double-stranded structure by matching base pairs. For example, the complementary sequence to C-A-T-G (where each letter stands for one of the bases in DNA) is G-T-A-C.