When comparing the structures of RNA and DNA, which of the following statements is TRUE? OA Only RNA has a ß N-glycosidie linkage to a base OB Neither RNA or DNA has an ß N-glycosidic linkage to a base c. Only DNA has a B N-glycosidic linkage to a base OD. Both RNA and DNA have a B N-glycosidic linkage to a base
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- Draw a strand of DNA that has the following base sequence on the left hand side: ATTCGCTCG. Use the base paring rules to construct the right hand side of the molecule. Label the location of the sugars, the phosphates, and the nitrogen bases. Indicate where you would find a hydrogen bondThe sequence below shows one strand of DNA. Parts of the sequence are in capital letters to help you identify important features - capitalization does not affect the nucleotide indicated. 5' ...atacaATGcATGTCAaCTAcg[a]agatccgTAGaTAACATtCATatc...3' a) Underneath that strand, write the sequence of the strand of DNA it would be paired with in a double-stranded helix. Use the single letter code A-adenosine, G-guanosine, T-thymine, C-cytosine, and U-uracil, and remember to label the 5' and 3' ends b) Next, write the sequence of a possible mRNA transcript of the double-stranded DNA above. Remember that an mRNA must be translatable by a ribosome into a protein. Be sure to indicate 5' and 3' ends c) Using the genetic code at the end, translate your mRNA into the appropriate protein. Write the amino acid sequence of the protein using the single letter amino acid code (also at the end) below the mRNA sequence in (b) and label the amino and carboxy terminals d) Suppose the bracketed bold [a] were…Considering the components of a nucleotide, what component is alwaysdifferent when comparing nucleotides in a DNA strand and in an RNAstrand?a. phosphate group d. both b and cb. pentose sugar e. a, b, and cc. nitrogenous base
- Which of the following features of DNA is required for it to behave as a self-replicating molecule? A) A sugar phosphate backbone B) Complementary base pairing C) arrangement as double helix D) Phosphodiester bonds E) All of the aboveWhich one of these indicated groups or bonds:hydroxyl; phosphate; triphosphate; nitrogen base; phosphodiester bond; hydrogen bond; is present in each of the followingcases: (a) The 3' position of the last nucleotide added to the leading strand.(b) The 5' position of the first nucleotide of a RNA primer.(c) The 5' position of the first deoxyribonucleotide incorporated into an Okazaki fragment.(d) The 3' position of the last nucleotide of the RNA primer in an Okazaki fragment.(e) The 5' position of any of the deoxyribonucleotides before incorporation.Determine the characteristics of this piece of double-stranded DNA. GTCTTTTACTTGAAT CAGAAAATGAACTTA Phosphodiester bonds: _________________ Pyrimidines: _________________ Hydrogen bonds: _________________ Nitrogenous bases: _________________ A/T Ratio: _________________
- In the complementary base-pairing rule, ________________. Question 9 options: a nucleotide can base-pair to any other nucleotide using hydrogen bonds adenine will always pair with guanine adenine will always pair with thymine, and cytosine will always pair with guanine guanine will always pair with thymine adenine can pair with either guanine or thymineThe following are all true of RNA, excepta. it is a single-stranded molecule existing in helical form. b. it contains uracil rather than thymine as the complementary base-pairing mate for adenine.c. uracil does not follow the pairing rules;therefore, the inherent DNA code ischanged.d. the sugar in RNA is ribose rather than deoxyriboseFor entertainment on a Friday night, a genetics professor proposed that his children diagram a polynucleotide strand of DNA. Having learned about DNA in preschool, his 5-year-old daughter was able to draw a polynucleotide strand, but she made a few mistakes. The daughter’sdiagram (represented here) contained at least 10 mistakes. Q. Draw the correct structure for the polynucleotide strand.
- draw a strand of DNA 4 nucleotides long (4 nucleotides on each side). Label the 5’ ends, the 3’ ends, the bond that holds the DNA backbone together, the glycosyl bond, and the bond that holds the nitrogenous bases together. You can use “P” to represent phosphate, and ATCG to represent the nitrogenous bases. Please try to draw the sugar accurately and include any unbonded functional groups, including the oxygen within the molecule.The sequence below shows one strand of DNA. Parts of the sequence are in capital letters to help you identify important features – capitalization does not affect the nucleotide indicated. 5’…atacaATGcATGTCAaCTAcg[a]agatccgTAGaTAACATtCATatc…3’ a. Underneath that strand write the sequence of the strand of DNA it would be paired with in a doublestranded helix. Use the single letter code A-adenosine, G-guanosine, T-thymine, U-uracil and C-cytosine and remember to label the 5’ and 3’ ends. b. Next, write the sequence of a possible mRNA transcript of the double stranded DNA above. Remember that an mRNA must be translatable by a ribosome into a protein. Be sure to indicate 5’ and 3’ ends. c. Using the genetic code, translate your mRNA into the appropriate protein. Write the amino acid sequence of the protein below the mRNA sequence in (b) and label the amino and carboxy terminals d. Suppose the bracketed, bold [a] were mutated to be a t. Write the new sequence of your mRNA transcript…For entertainment on a Friday night, a genetics professor proposed that his children diagram a polynucleotide strand of DNA. Having learned about DNA in preschool, his 5-year-old daughter was able to draw a polynucleotide strand, but she made a few mistakes. The daughter’sdiagram (represented here) contained at least 10 mistakes. Q. Make a list of all the mistakes in the structure of this DNA polynucleotide strand.
