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4 Written questions

4 Multiple choice questions

  1. DNA- Adenine to Thymine, and Guanine to Cytosine
    RNA Thymine to Uracil, and Cytosine to Guanine
  2. 23 pairs
  3. threadlike structure of nucleic acids and proteins for in the nucleus
    carrying genetic information in the form of genes
  4. 23 chromosomes

3 True/False questions

  1. Which two nitrogenous bases are purines? pyrimidlines?protein


  2. What are the 3 differences between DNA and RNA?DNA- double stranded, contains deoxyribose sugar and thymine base
    RNA- single stranded, contains ribose sugar and uracil base


  3. How many chromosomes are found in a normal body cell?23 chromosomes


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