What is the bond between pentose sugar and phosphate?
Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide. This produces an alternating backbone of sugar – phosphate – sugar – phosphate all along the polynucleotide chain.
Which bond is present in between pentose sugar and nucleic acid base?
Each nucleotide subunit is composed of a pentose sugar (deoxyribose), a nitrogenous base, and a phosphate group. The two strands associate via hydrogen bonds between chemically complementary nitrogenous bases.
Which of the following bond is present between the sugar and phosphate of a nucleoside?
phosphodiester bond
The bond which joins or connects the phosphate group with the sugar molecule is known as a phosphodiester bond. So, the correct answer is ‘(C) Sugar and nitrogen base’.
How is the sugar phosphate backbone held together?
The sugar phosphate backbone is an important stuctural component of DNA. It consists of 5-carbon deoxyribose sugars and phosphate groups. These sugars are linked together by a phosphodiester bond, between carbon 4 of their chain, and a CH2 group that is attached to a phosphate ion.
Which type of bond is present between nucleoside and group?
| I | II |
|---|---|
| (a) Hydrogen bond | (i) Adenine – deoxyric base |
| (b) N-glycosidic linkage | (ii) Glucose – Fructose |
| (c) Phosphodiester bond | (iii) Leucine – Glycine |
| (d) Peptide bond | (iv) Nucleotide – Nucleotide in polynucleotide chain |
What is the bond between sugar and sugar?
Glycosidic bonds are the primary linkages between sugars and other sugars and between sugars and other types of molecules.
Which of the following bond is present between phosphate and hydroxyl group of sugar?
ester bond
The bond between the phosphate and hydroxyl group of sugar is called ester bond.
Which of the following is used to form covalent bonds in the sugar phosphate backbone between fragments of DNA?
Phosphodiester bonding
Phosphodiester bonding between nucleotides forms the sugar-phosphate backbone, the alternating sugar-phosphate structure composing the framework of a nucleic acid strand (Figure 3).
What type of bond holds the base pairs together?
The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.
What is the bond between deoxyribose and phosphate?
This type of bond is called a glycosidic bond. The phosphate group forms a bond with the deoxyribose sugar through an ester bond between one of its negatively charged oxygen groups and the 5′ -OH of the sugar ().
What type of bond is sugar?
covalent bonds
Salt is made up of sodium and chloride and is ionically bonded. Sugar, on the other hand, is composed of carbon, oxygen, and hydrogen and has covalent bonds.