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A polynucleotide strand forms from covalent bonds known as phosphodiester bonds, which link together the individual nucleotides (composed of a sugar, phosphate group, and nitrogenous base). These phosphodiester bonds connect the 3' carbon of one nucleotide to the 5' carbon of the next nucleotide in the strand, creating a linear chain.
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In DNA molecule how many polynucleotide strands are present?
In a DNA molecule, two polynucleotide strands are present. These strands are arranged in a double helix structure, with each strand consisting of a sequence of nucleotides that are complementary to each other.
Why is DNA called polynucleotide?
DNA is called a polynucleotide because it is composed of multiple nucleotides linked together in a chain. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base, and when these nucleotides join together through phosphodiester bonds, they form a long chain called a polynucleotide.
What is the definition of DNA molecule?
Consists of two polynucleotide chains in the form of a double helix, containing phosphate and the sugar deoxyribose and linked by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine
What does Adenine A bond with?
Adenine bonds with thymine in DNA and uracil in RNA.
What form of DNA is used in replication?
In DNA replication, the double-stranded DNA molecule serves as a template for the creation of a new complementary strand. The process involves breaking the hydrogen bonds between the two strands and using each strand as a template for the synthesis of a new complementary strand.
In DNA molecule how many polynucleotide strands are present?
In a DNA molecule, two polynucleotide strands are present. These strands are arranged in a double helix structure, with each strand consisting of a sequence of nucleotides that are complementary to each other.
How many polynucleotide strands do RNA have?
RNA typically consists of a single polynucleotide strand.
What make up the backbone of a polynucleotide strand?
The backbone of a polynucleotide strand is composed of alternating sugar (deoxyribose or ribose) and phosphate molecules. The sugar-phosphate backbone provides the structural support for the nucleotide bases, which extend from the backbone and form interactions with bases on the opposite strand in DNA or RNA molecules.
A bonds with what?
Adenine bonds with thymine in a DNA strand, however, in an RNA strand, Adenine bonds with uracil.
What does a bond with?
Adenine bonds with thymine in a DNA strand, however, in an RNA strand, Adenine bonds with uracil.
What type of bond is between nucleotides?
In producing a strand of DNA the nucleotides combine to form phosphodiester bonds.
Why is DNA called polynucleotide?
DNA is called a polynucleotide because it is composed of multiple nucleotides linked together in a chain. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base, and when these nucleotides join together through phosphodiester bonds, they form a long chain called a polynucleotide.
What is a polynucleotide?
Polynucleotide is a molecule that is usually in DNA and RNA. It is biopolymer composed and usually has thirteen or more nucleotides.
What is the definition of DNA molecule?
Consists of two polynucleotide chains in the form of a double helix, containing phosphate and the sugar deoxyribose and linked by hydrogen bonds between the complementary bases adenine and thymine or cytosine and guanine
What is the structure of polynucleotide chain?
A polynucleotide chain consists of a backbone made of alternating sugar and phosphate groups, linked by phosphodiester bonds. The sugars are typically ribose in RNA and deoxyribose in DNA. Attached to each sugar is a nitrogenous base (adenine, thymine, cytosine, or guanine in DNA; uracil replaces thymine in RNA), which pairs with complementary bases on another strand in double-stranded nucleic acids. This structure allows for the formation of helical shapes, particularly in DNA.
What does Adenine A bond with?
Adenine bonds with thymine in DNA and uracil in RNA.
What is a strand of DNA composed of?
hydrogen bonds
