Tabulate the main structural features of DNA and RNA. In one sentence, point out the salient difference(s) if any in the structures of these nucleic acids?
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Tabulate the main structural features of DNA and RNA. In one sentence, point out the salient difference(s) if any in the structures of these
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- Describe the structure of nucleotides and the manner in which these monomers are joined to form a polynucleotide strand. Why would it be overly simplistic to describe RNA as a single-stranded nucleic acid?When comparing the structures of RNA and DNA , which of the following statement is True?A-Only RNA contains 3'-deoxyribise rings B-Both RNA and DNA contain 3'-deoxyribise rings C-Only DNA contains 3'- deoxyribise rings D-Neither RNA or DNA contain 3'-deoxyribise ringsConsider the following in light of the concept of levels of structure (primary, secondary, tertiary, quaternary)as defined for proteins.(a) What level is shown by double-stranded DNA?(b) What level is shown by tRNA?(c) What level is shown by mRNA?
- Draw the structure of each nucleotide: (a) UMP; (b) dTMP; (c) AMP.Using the figure below, clearly identify which numbered component corresponds}to a purine, a pyrimidine, a sugar, a phosphate, and hydrogen bonds. Additionally, please list the three components of a nucleotide. For 1 bonus point, which of the base pairs (C-G or A-T) require more energy to break apart? Briefly explain your answer.Consider the following in light of the concept of levels of structure (primary, secondary, tertiary, quaternary) as defined for proteins. (a) What level is shown by doublestranded DNA? (b) What level is shown by tRNA? (c) What level is shown by mRNA?
- The structure shown below is a nucleic acid. (a) Decide whether it's a DNA or an RNA, and explain your answer. Clearly indicate on the diagram where you looked to decide. (b) What atom is represented by the orange sphere in the figure? (c) An arrow at the bottom right of the figure is drawn to a specific base. Is this a purine or a pyrimidine? Explain. Identify the specific base; explain.Within a protein, certain amino acids are positively charged (e.g.,lysine and arginine), some are negatively charged (e.g., glutamateand aspartate), some are polar but uncharged, and some are nonpolar.If you knew that a DNA-binding protein was recognizingthe DNA backbone rather than a base sequence, which aminoacids in the protein would be good candidates for interacting withthe DNA?Discuss the structural significance of complementarity in DNAand in RNA.
- A) What is the difference between a nucleoside and a nucleotide? B) Give any two differences between DNA and RNA. C) Draw the structure of deoxyribose and ribose below, and number the carbons. What is the difference between the two structures? Please answer all 3 partsDNA and RNA are chemically very similar but are distinguished, in large part, by the presence of a 2’-OH group in RNA and a 2’-H group in DNA. Why do you suppose that both DNA and RNA have 3’-OH groups and we do not typically find nucleic acids within cells that have 3’-H groups?Name the bases present in RNA. Which one of these is not present in DNA?