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What holdes the two strands of a DNA molecule to each other?
Hydrogen bonds
What The type of bond that links two nucleotides between two different strands of DNA is known?
The type of bond that links two nucleotides between two different strands of DNA is known as a hydrogen bond. These bonds form between complementary nitrogenous bases—adenine pairs with thymine, and cytosine pairs with guanine—holding the two strands of the DNA double helix together. Hydrogen bonds are relatively weak compared to covalent bonds, allowing the DNA strands to separate during processes such as replication and transcription.
Do covalent bonds hold two strands of a DNA molecule together?
Covalent bonds do not hold the two strands of a DNA molecule together; instead, they connect the individual nucleotides within each strand, linking the sugar and phosphate groups. The two strands of DNA are held together by hydrogen bonds between complementary nitrogenous bases (adenine with thymine, and guanine with cytosine). These hydrogen bonds allow the strands to separate easily during processes like DNA replication and transcription, while the covalent bonds provide structural integrity to each strand.
How many strands does DNA have what is its shape?
DNA has two strands that form a double helix shape. The double helix structure is like a twisted ladder, with two strands of nucleotides connected by hydrogen bonds and coiled around each other.
What bonds do helicase and polymerase enzymes break?
Helicase enzyme breaks hydrogen bonds between base pairs in DNA strands to unwind the double helix structure. Polymerase enzyme breaks the bonds between nucleotides in the DNA strand being replicated, allowing for the addition of new nucleotides during DNA replication.
Through which successive nucleotides are covalently linked?
phosphodiester bonds
What types of linkage joins the nucleotides a within a single DNA strand and b between two single DNA strands?
a. Phosphodiester bonds link nucleotides within a single DNA strand. b. Hydrogen bonds link complementary base pairs between two single DNA strands.
What is a basepair?
A basepair is a pair of nucleotides on opposite complementary DNA or RNA strands which are connected via hydrogen bonds.
What holdes the two strands of a DNA molecule to each other?
Hydrogen bonds
What is base-pairing?
A basepair is a pair of nucleotides on opposite complementary DNA or RNA strands which are connected via hydrogen bonds.
What enzyme joins the nucleotides of a DNA strand together?
That depends on the process. During DNA replication, The nucleotides of the lagging strand (Okazaki fragments) are connected by DNA ligase. In transcription, the nucleotides of RNA are connected by RNA polymerase II.DNA Polymerse
Which nucleotides bonds with adenine?
Nucleotide, singular.Thymine binds with adenine.
What joins sugars to phosphate groups in nucleotides?
In nucleotides, sugars are joined to phosphate groups by phosphodiester bonds. This bond is formed between the 5' carbon of one sugar molecule and the 3' carbon of another sugar molecule, creating a sugar-phosphate backbone in DNA and RNA strands.
Why does DNA have to have hydrogen bonds?
Hydrogen bonds help hold the two strands of DNA together in a stable double helix structure. Without hydrogen bonds, the DNA molecule would not be able to maintain its shape and function properly as the genetic material of the cell.
How many strands does DNA have what is its shape?
DNA has two strands that form a double helix shape. The double helix structure is like a twisted ladder, with two strands of nucleotides connected by hydrogen bonds and coiled around each other.
How are nucleic acids held together?
Nucleic acids are held together by phosphodiester bonds between the sugar and phosphate groups of adjacent nucleotides in the backbone of the molecule. Additionally, hydrogen bonds between nitrogenous bases in complementary strands help stabilize the double-stranded structure of DNA or RNA.
What breaks the hydrogen bonds between nucleotides to separate dna into 2 stands?
Enzymes called helicases are responsible for breaking the hydrogen bonds between nucleotides in DNA strands to separate them. Helicases unwind the double helix structure of DNA during processes such as replication, transcription, and repair.
