14.1 Structure of RNA 0.0 / 5 ? BiologyDNA, genetics and evolutionA2/A-levelAQA Created by: Isabel CookeCreated on: 05-02-14 19:59 Where does the synthesis of proteins predominately take place? The cytoplasm 1 of 12 How is the code on DNA transferred to the cytoplasm? Sections are transcribed onto the single-stranded mRNA which diffuses through the nuclear pores. 2 of 12 What are the types of RNA? messenger RNA, transfer RNA, small interfering RNA. 3 of 12 How does the code on the mRNA differ from that on the DNA? It is complementary, and the thymine is substituted for urasil. 4 of 12 What does the term codon refer to? The triplet of bases on mRNA which code for an amino acid. 5 of 12 What is a degenerate code? More than one codon can code for the same amino acid. 6 of 12 What is a universal code? The same codons code for the same amino acids in all organisms. 7 of 12 What sugar is found in RNA and DNA? Ribose sugar, deoxyribose sugar. 8 of 12 Why is mRNA easily broken down? So it only exists while it is needed to manufacture the specific protein. 9 of 12 What shape is tRNA? Single-strand, folded into a clover leaf shape. One end of the chain extends on, where the aminno acid attaches. 10 of 12 What is the side of tRNA that attaches to the mRNA called? Anticodon 11 of 12 What is a non-overlapping code? Each base is read only once. 12 of 12
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