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Why is replication on one strand of DNA continuous while on the other strand the replication must be discontinuous?
Wiki User
∙ 11y ago
New strands of DNA can only be created in one direction - 5' to 3'. This is because only the 3' end of the DNA is able to join to a new nucleotide.
The two strands of DNA are antiparallel - meaning they run in different directions. Therefore only one strand (called the leading strand) is running in the correct direction for continuous replication. The other strand (called the lagging strand) must first be looped around so that small sections can be replicated in the correct direction.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agobecause it just does.
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There is a y shaped replication fork on each side of each replication bubble what are the sides of the replication fork called?
One is known as the Leading strand, and the other is known as the Lagging strand.
What is the definition of a lagging strand?
A lagging strand is one of two strands of DNA found at the replication fork, or junction, in the double helix; the other strand is called the leading strand. A lagging strand requires a slight delay before undergoing replication, and it must undergo replication discontinuously in small fragments.
At each replication fork one new strand of DNA is made of many small pieces. what is the strand of DNA called?
When the two parent strands of DNA are separated to begin replication, one strand is oriented in the 5' to 3' direction while the other strand is oriented in the 3' to 5' direction. DNA replication, however, is inflexible: the enzyme that carries out the replication, DNA polymerase, only functions in the 5' to 3' direction. This characteristic of DNA polymerase means that the daughter strands synthesize through different methods, one adding nucleotides one by one in the direction of the replication fork, the other able to add nucleotides only in chunks. The first strand, which replicates nucleotides one by one is called the leading strand; the other strand, which replicates in chunks, is called the lagging strand. The lagging strand replicates in small segments, called Okazaki fragments. These fragments are stretches of 100 to 200 nucleotides in humans (1000 to 2000 in bacteria).
What is continuous and discontinuous variations?
Continuous variation is variation without fixed values such as height or shoe size. Discontinuous variation has fixed values/catagories such as eye colour or hair colour. Hope this helps!
Does the process of DNA replication result in a copy of the original strand of DNA?
The process of DNA replication is semi-conservative. Which means, in the new (daughter) DNA double helices that are formed, one strand belongs to the parent strand (also referred to as the template strand) and the other is a newly synthesized strand. Subsequently, every new DNA molecule that is formed as a result of the replication process has one original parent strand and one newly synthesized complimentary strand.
What DNA replication enzyme attaches okazaki fragments as a continuous strand of DNA?
Ligase joins okazaki fragments to each other to form a continuous strand of DNA
There is a y shaped replication fork on each side of each replication bubble what are the sides of the replication fork called?
One is known as the Leading strand, and the other is known as the Lagging strand.
What is the definition of a lagging strand?
A lagging strand is one of two strands of DNA found at the replication fork, or junction, in the double helix; the other strand is called the leading strand. A lagging strand requires a slight delay before undergoing replication, and it must undergo replication discontinuously in small fragments.
At each replication fork one new strand of DNA is made of many small pieces. what is the strand of DNA called?
When the two parent strands of DNA are separated to begin replication, one strand is oriented in the 5' to 3' direction while the other strand is oriented in the 3' to 5' direction. DNA replication, however, is inflexible: the enzyme that carries out the replication, DNA polymerase, only functions in the 5' to 3' direction. This characteristic of DNA polymerase means that the daughter strands synthesize through different methods, one adding nucleotides one by one in the direction of the replication fork, the other able to add nucleotides only in chunks. The first strand, which replicates nucleotides one by one is called the leading strand; the other strand, which replicates in chunks, is called the lagging strand. The lagging strand replicates in small segments, called Okazaki fragments. These fragments are stretches of 100 to 200 nucleotides in humans (1000 to 2000 in bacteria).
What is a discontinuous film?
A film which is not continuous. In other words, there are breaks, gaps or other interruptions in the film. For example, if the material was conductive, a discontinuous film of that material would not conduct because of the breaks in the film.
What is continuous and discontinuous variations?
Continuous variation is variation without fixed values such as height or shoe size. Discontinuous variation has fixed values/catagories such as eye colour or hair colour. Hope this helps!
How does the nucleotides on one strand of DNA provide a template or guide for the sequence of subunits on the other strand?
They bond, and make a replication of itself.
What are the types of variations?
There are 2 types of variation: Continuous and Discontinuous. Continuous: Has slight differences that grade into each other. Usually has quantitative/measurable characteristics. e.g Human height/weight... Discontinuous: It has discrete differences which have a clear cut- they do not merge into each other. e.g. human blood...
What are types of variations?
There are 2 types of variation: Continuous and Discontinuous. Continuous: Has slight differences that grade into each other. Usually has quantitative/measurable characteristics. e.g Human height/weight... Discontinuous: It has discrete differences which have a clear cut- they do not merge into each other. e.g. human blood...
Does the process of DNA replication result in a copy of the original strand of DNA?
The process of DNA replication is semi-conservative. Which means, in the new (daughter) DNA double helices that are formed, one strand belongs to the parent strand (also referred to as the template strand) and the other is a newly synthesized strand. Subsequently, every new DNA molecule that is formed as a result of the replication process has one original parent strand and one newly synthesized complimentary strand.
Does dna ligase help assemble the leading strand?
Not in general replication as the leading strand is replicated straight away. The lagging strand is replicated in pieces that need ligase to affix them, one to the other. However, in a replication bubble, when a lagging strand runs into a leading strand, and later the primers are replaced, ligase is still needed. Therefore, technically, the leading strand does need the ligase once.
What is the name of the DNA replication process that produces two identical DNA molecules each consisting of one parent strand and one daughter strand?
I'm not an expert on this subject but as I've learned, DNA is split into two replication forks where the complimentary base pairs and other backbones are added on, so ideally it would be 50% of the original strand in each daughter strand.
