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4 Written questions

4 Multiple choice questions

  1. 46 chromosomes
  2. 23 pairs
  3. sequence of DNA that codes for a protein and determines a trait
  4. purines: adenine and guanine
    pyrimidlines: cytosine and thymine

3 True/False questions

  1. Where do the chromosomes in each pair come from?23 chromosomes


  2. What are the complementary base pairs in DNA and RNA?DNA- double stranded, contains deoxyribose sugar and thymine base
    RNA- single stranded, contains ribose sugar and uracil base


  3. what is a chromosome?threadlike structure of nucleic acids and proteins for in the nucleus
    carrying genetic information in the form of genes