Interpretation:
The name of bases in the given pentanucleotide has to be given and the fragment is of RNA or DNA has to be predicted.
Concept Introduction:
Composition of
Sugar: In both DNA and RNA, sugar portion is found. In DNA, the sugar is D-ribose, where at 2’hydroxyl group is absent and in RNA, the hydroxyl group is present at 2’.
Nitrogenous bases: Five types of nitrogenous bases (has unique one-letter code A, G, T, U, and C) are derived from two parent compounds called purine and pyrimidine. The purine derivatives are Adenine and Guanine are two fused nitrogen containing rings. The pyrimidine derivatives are Thymine, Cytosine, and Uracil are only one nitrogen containing six-membered ring. Adenine, Guanine, Thymine, and Cytosine are the nitrogenous bases present in DNA. Adenine, Guanine, Cytosine and Uracil are the nitrogenous bases present in RNA.
Nucleotide: (Nucleoside + phosphate)
Nucleotides are the building blocks of nuclei acids; monomers of DNA and RNA
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EP FUND.OF GENERAL,ORG...-MOD.MASTERING
- List the pyrimidine bases, the purine bases, and the base-pairing rules for DNA.arrow_forwardWhat is the nucleotide sequence of the complementary strand of the DNA molecule: 5’-AATGCGATCTTCAT-3’? Indicate the 5’ and 3’ ends. Follow the same format as the given sequence.arrow_forwardDraw the chemical structure of a dinucleotide composed of A and G. Opposite this structure, draw the dinucleotide composed of T and C in an antiparallel (or upside-down) fashion. Form the possible hydrogen bonds.arrow_forward
- DNA molecules consist of chemically linked sequences of the bases adenine, guanine, cytosine, and thymine, denoted A, G, C, and T. A sequence of three basesiscalleda codon. A base may appear more than once in a codon. a) How many different codons are there? b) The bases A and G are purines, while C and T are pyrimidines. How many codons are there whose first and third bases are purines and whose second base is a pyrimidine? c) How many codons consist of three different bases?arrow_forwardWhat will be the order of amino acids derived from the following DNA sequence 5’-TGATCGCACAAT-3’? Explain briefly. (1.5) If the base G (denoted by an asterisk) in the sequence 5’-TGATCG*CACAAT-3’ is replaced by C due to a mutation, the new sequence will be 5’-TGATCCCACAAT-3’ what will be the new amino acid sequence? Explain briefly. (1.5) If the anticodon sequence of a tRNA is 5’-GCG-3’, what amino acid will it carry? Explain briefly. (1.5) What would be the effect of mutation if the C is changed to A in the anticodon? Explain briefly. (1.5)arrow_forwardPlace an asterisks (*) next to the 3' carbon atoms in the polynucleotide shown. -O CH₂ HOHDH Guanine -O-CH₂ H H H Thymine =P-O-CH₂ H OH Answer Bank H H Cytosinearrow_forward
- Adenine may also be named 6-amino purine. How would you name the other four nitrogenous bases, using this alternative system? (O is indicated by “oxy-,” and CH3 by “methyl.”)arrow_forwardWhat are the sequences of all the possible tripeptides that contain the amino acids, serine, leucine and phenylalanine? Use 3-letter abbreviations to express your answer.arrow_forwardHow is a dideoxynucleotide different from a deoxynucleotide?arrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning