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How many strands of nucleotides are in DNA?
Thousands upon thousands. Because DNA must contain all the characteristics of your being, it must be long.
What enzyme is responsible for catalyzing the formation of the two new DNA strands?
DNA polymerases
What does semi-conservative model mean?
Refers to semi-conservative replication of DNA. One strand of the old DNA is used as a template to replicate the other, new, strand of DNA. Thus you have four from two, but two of the four are old strands while the other two strands are new. Thus the name semi-conservative replication.
Is DNA a single stranded molecule?
Yes, DNA is double-stranded.There are two strands. Each one is a polymer (series) of nucleotides, and the two strands twine round one another to form the DNA molecule.
Why the amount of DNA produced with pcr is expected to double with each cycle?
double stranded DNA into single stranded DNA meaning that 2 DNA strands can be produced
What binds the DNA strands to keep them separated?
The DNA strands are bound and kept separated by hydrogen bonds between complementary base pairs.
The junction between separated strands of DNA is called what?
The junction between separated strands of DNA is called a replication fork.
Do two DNA strands need to be separated before DNA replication or transcription can occur?
Yes. Also, of the two strands of DNA, only one is the template that will be transcribed, while the other strand is a noncoding strand of DNA.
What is the process in which DNA is separated into two strands then produces two new complementary strands following the rules of base pairing?
DNA replication
What does the replication fork do in DNA replication?
The replication fork is a structure formed during DNA replication where the parental DNA strands are separated and new complementary strands are synthesized. It allows for the simultaneous synthesis of two new DNA strands in opposite directions. The replication fork moves along the DNA strand as replication proceeds.
When DNA separates into two strands the DNA would most likely be directly involved in?
When DNA separates into two strands, it is directly involved in processes such as DNA replication, transcription, and repair. During DNA replication, the separated strands serve as templates for producing two complete copies of the DNA molecule. In transcription, one of the DNA strands is used as a template to synthesize RNA molecules. Additionally, DNA repair mechanisms utilize the separated strands to correct any damage or errors in the DNA sequence.
What are DNA strands held together by hydrogen bonds separated by?
Hydrogen bonding infers that the two strands are VERY close together so the strands are practically right next to each other. As the strands wind up in a larger scale they wrap around proteins to keep them secure and finally form a combined material called chromatin which make up chromosomes in eukaryote cells.
What separates the DNA strands during replication?
During replication, the DNA strands are separated by an enzyme called helicase. Helicase unwinds the double helix structure of DNA, breaking the hydrogen bonds between the base pairs and allowing the strands to separate for replication to occur.
What causes two strands of DNA to split?
The answer depends on the circumstances! In a cell, during DNA replication or during translation, the two strands in a DNA molecule are separated by enzymes called topoisomerases and helicases. In a solution, the two strands of a DNA molecule can be separated by being heated. This is called DNA melting. See: http://en.wikipedia.org/wiki/DNA http://en.wikipedia.org/wiki/DNA_melting
The first step of DNA replication is to copy part of the DNA sequence into?
The first step of DNA replication is to unwind and separate the two strands of the double helix. This process is initiated by enzymes called helicases. Once the strands are separated, they serve as templates for the synthesis of new complementary strands.
What happens first at each origin replication?
Enzymes unwind DNA!
What takes place during DNA replication?
The DNA double helix unwinds, & the two separated strands each serve as a template for a complementary strand to be synthesised
