Biology - DNA 0.0 / 5 ? BiologyDNA and inheritanceNational 5SQA Created by: KalitiseCreated on: 24-05-18 12:32 which gene fits with T? A fits with T 1 of 19 Which letter fits with G? C fits with G 2 of 19 A-T and G-C are______ Complementary base pairs 3 of 19 what does A stand for? Adenine 4 of 19 What does T stand for? Thymine 5 of 19 What does G stand for Guamine 6 of 19 What does C stand for? Cytosine 7 of 19 What is DNA described as? A double helix. 8 of 19 What are chromosomes? Chromosomes are threadlike structures composed of genes. 9 of 19 What do chromosomes contain? Chromosomes contain DNA. 10 of 19 what does DNA stand for? Deoxyribonucleic Acid. 11 of 19 What is a gene? A gene is a section of DNA. 12 of 19 Chromosomes are not a what? Chromosomes are not chemicles. 13 of 19 How many chromosomes does the cell nucleus contain? 23 chromasomes. 14 of 19 What two substances is the backbone of DNA made up of? A phosphate group? and deoxyribose sugar. 15 of 19 What are the bases in DNA? A-T and G-C. 16 of 19 what connects the bases in DNA? A weak hydrogen bond. 17 of 19 What sub-unit is DNA made up of? Nucleotides. 18 of 19 Explain how the base sequence determines the structure of a protein. mRNA (a messenger) carries a copy of DNA (genetic code) from the nucleus to the ribosomes. The ribosomes then translate this code into proteins. 19 of 19
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