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- 19. Which of the following nitrogenous bases are classified as pyrimidines? Group of answer choices cytosine and guanine cytosine and thymine adenine and uracil adenine and guanineThe building blocks of nucleic acids are ____. a. sugars b. nitrogenous bases c. peptides d. nucleotidesWhich of the following elements is not a micronutrient? boron calcium chromium manganese
- 4. Which atom with a lone pair in the structure contributes to theresonance property of the nucleotide? Choose the letter of youranswer in the structure.5. How many hydrogen bonds is the structure pointing at E capableof forming?6. What is the name of the nitrogenous base which iscomplementary to pair with the nitrogenous base in the structure?the DNA consists f 2 strnds hold together by which bond?Group the following as nitrogenous bases and nucleosides:Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
- 15. 2 1 3 - What part of the nucleotide represents a nitrogen base? O 01 None 2 31. What bonds are responsible for joining the pentose sugar of one nucleotide to the phosphate group of the other nucleotide? 2. What bond connects the nitrogenous base to the pentose sugar?7. The diagram below represents a portion of a deoxyribonucleic acid. 10 sbrio od Which sequence of base pairs along the bottom complemen the base pairs labeled on the top side of the nucleic acid? Gun m A ATGC B UACG OTACG D GCAU
- tue 16. Identify the molecule below H H H-N-C- C ОН CO ovo -CIR17. All nucleotides have the same organization, a phosphate group attached to a pentose (a 5 C sugar), and a nitrogenous base attached to the pentose as well. The polynucleotides (DNA & RNA) carry information in: a) the native conformation b) the backbone of the molecule c) the linear sequence of nitrogenous bases from beginà end d) the ribofusion27. The AT base pair has hydrogen bonds while the CG base pair has hydrogen bonds 2, 2 2, 3 3, 2 3, 3
