Which positions in the purine ring of a purine nucleotide in DNA have the potential to formhydrogen bonding but are not involved in Watsonzz-Crick base pairing
Question
Which positions in the purine ring of a purine nucleotide in DNA have the potential to formhydrogen bonding but are not involved in Watsonzz-Crick base pairing
Solution 1
In a purine nucleotide in DNA, the positions that have the potential to form hydrogen bonding but are not involved in Watson-Crick base pairing are the N7 and N9 positions of the purine ring. These positions have lone pairs of electrons that can participate in hydrogen bonding interactions with other molecules or functional groups. However, in the context of DNA, these positions do not typically participate in the formation of base pairs with complementary nucleotides. Instead, they may be involved in other types of interactions, such as stacking interactions with adjacent nucleotides or interactions with proteins or other molecules in the cellular environment.
Solution 2
In a purine nucleotide in DNA, the positions that have the potential to form hydrogen bonding but are not involved in Watson-Crick base pairing are the N7 and N9 positions of the purine ring. These positions have lone pairs of electrons that can participate in hydrogen bonding interactions with other molecules or functional groups. However, in the context of DNA, these positions do not typically participate in the formation of base pairs with complementary nucleotides. Instead, they may be involved in other types of interactions, such as stacking interactions with adjacent nucleotides or interactions with proteins or other molecules in the cellular environment.
Similar Questions
The pairing of complementary bases in DNA (through hydrogen bonding) means that the information contained within each strand is redundant. Phosphodiester (intra-strand) bonds are stronger than hydrogen (inter-strand) bonds. The actual job of the phosphodiester bonds is where in DNA polymers connect the 5' carbon atom of one nucleotide to the 3' carbon atom of another nucleotide, while the hydrogen bonds stabilize DNA double helices across the helix axis but not in the direction of the axis.[19] This makes it possible to separate the strands from one another. The nucleotides on a single strand can therefore be used to reconstruct nucleotides on a newly synthesized partner strand.[20]
_catalyses the formation of phosphodiester bond between two deoxynucleotide residues of two DNA strands
Which enzyme covalently links nucleotides together?
Strands of DNA are joined byMultiple Choicehydrogen bonds.covalent bonds.ionic bonds.phosphodiester bonds.
What does a nucleotide consist of?Protein-sugar-basePhosphate-sugar-baseAmino acid-sugar-baseProtein-phosphate-base2There are four different bases in DNA, which always pair up in a particular way. Which of the following shows the correct complementary base pairing? A-X and G-CT-A and G-CA-A, C-C, T-T and G-GA-G and T-C3What takes place during transcription?DNA unwinds and mRNA copy is mademRNA threads through a ribosometRNA molecules bring amino acids together to form a chainAmino acid chain folds up to form a protein4In which part of the cell does translation take place? Cell membraneNucleusMitochondriaRibosome5Which of the following statements about protein synthesis is incorrect? Proteins are made up of amino acidsThe amino acids that make up a protein can be connected in any orderThere are about 20 different amino acidsEach group of three bases codes for one amino acid6What term describes a change in a gene or chromosome? An alterationA switchA natural selectionA mutation
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