DNA Structure Practice

Complete the blanks below. Use your notes on DNA structure if you need it. **Make sure that when you fill in an answer, you see it crossed out in the word bank.** DNA Structure:The shape of DNA is scientifically known as a Double Helix.The shape looks like a twisted ladder.The phosphate and deoxyribose sugar form the backbone or sides of the DNA ladder, while the nitrogen bases form the rungs or middle of the DNA ladder.DNA is a polymer made up of smaller sub-units called nucleotides. These are the monomers.A nucleotide consists of the following three parts: phosphate group, 5-carbon sugar, and nitrogenous base.The two scientists given credit for discovering the structure of DNA were: James Watson and Francis Crick. Let us not forget Rosalind Franklin and all of her contributions as well, however! Match the base pairs. Adenine Thymine Guanine Cytosine Thymine Adenine Cytosine Guanine DNA Structure Fill in each of the blank spaces to label the DNA Structure. Use your notes to help you if you need it. A G T A G G Phosphate Deoxyribose Sugar Hydrogen Bond Chargaff's Rule Complete the boxes with the correct information. Remember that Chargaff's rule states that base pairs are found in the same amount in DNA. Bases Percentage Adenine 15 Cytosine 35 Thymine 15 Guanine 35 Total 100 Chargaff's Rule Complete the boxes with the correct information Bases Percentage Adenine 7.5 Cytosine 42.5 Thymine 7.5 Guanine 42.5 Total 100