Why are nucleotides added to the 3' end? In DNA, the two purines are, and the two pyrimidines are a) cytosine (C) and thymine (T) ... adenine(A) and guanine(G) b) adenine(A) and guanine(G) ... cytosine(C) and...
Note that the nucleotides are linked through the phosphate groups connected between the 5′ carbon and the 3′ carbon of adjacent deoxyribose sugar molecules. The chain of DNA has a negatively charged phosphate backbone. The DNA chain has two chemically distinct ends. At the 5′ end (top) a...
A correct statement about "peptide bonds" is that they are A) covalent bonds between a nitrogen and a carbon B) hydrogen bonds formed between two amino acids. C) formed between nucleotides in a DNA molecule. D) linkages between sugar groups in a poly...
A phosphodiester bond is formed between two nucleotides to form the sugar-phosphate backbone of DNA. This reaction occurs as a condensation reaction, where a water molecule is removed. How do you identify a phosphodiester bond? A phosphodiester bond is identified as a bond between 2 sugar hydroxy...
Hydrogen bonding between amino acids in a linear protein molecule determines how it folds up into its functional configuration. Hydrogen bonds between nitrogenous bases in nucleotides on the two strands of DNA (guanine pairs with cytosine, adenine with thymine) give rise to the double-helix ...
According to the model, DNA is composed of two strands of nucleotides coiled around each other, linked together by hydrogen bonds and running in opposite directions. 根据该模型,DNA由彼此缠绕的两条核苷酸链组成,通过氢键连接在一起并以相反方向运行。 LASER-wikipedia2 Hoogsteen pointed out that if...
Q.3. Which bond involves interaction between non-polar compounds? Ans:Hydrophobic interaction involves non-polar compounds. Q.4. Which bond is present in Protein? Ans:Peptide bond links two amino acids, whereas disulphide bond, ionic interaction and hydrogen bonds stabilise the tertiary structure of...
The links between the nucleotides are the phosphodiester bonds (nucleotide phosphodiester bond). As far as the anatomy of the chemical reaction is concerned, there is a free -OH group available at the 3′ end present at the 3′- carbon of the sugar. Similarly, there is a free phosphate ...
Shin J, Bernstein ER (2014) Vacuum ultraviolet photoionization of carbohydrates and nucleotides. J Chem Phys 140:044330 Google Scholar Sobolewski AL, Domcke W, Hättig C (2005) Tautomeric selectivity of the excited-state lifetime of guanine/cytosine base pairs: the role of electron-driven proto...
What are the nucleotides in RNA? Which of the following is not a difference between DNA and RNA? a. DNA has thymine, whereas RNA has uracil. b. DNA usually has two polynucleotide strands, whereas RNA usually has one strand. c. DNA has deoxyribose sugar, whereas RNA has ...