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Okazaki fragments
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∙ 14y ago
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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 is the scientific term for the shape of the DNA strand?
The name of the shape of DNA is called double helix. There are two long strands of DNA connected in several points. These strands twist and look like a spiral or a spring.
What are DNA strands separated by?
Assuming this is regarding DNA replication or transcription, the enzyme helicase separates the two strands.
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.
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.
In the replication of DNA what is the name of the enzyme which joins the lagging strands together?
DNA ligase
Compare the leading and lagging strands during replication?
the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction
Why does Dna have both leading and lagging Strands?
The lagging strand is called the lagging strand because, unlike the leading strand, DNA polymerase can not replicate in a 5' to 3' uninterrupted flow on this strand. Remember, DNA has two strands that run ANTIPARALLEL, one to the other; in other words they run in opposite directions.
What is ligase?
This enzyme is used on the lagging strand of DNA and seals the lagging strand to its daughter strand in order to create another double helix DNA
Is RNA polymerase used in both leading and lagging strands of DNA replication?
the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction
How many strands are replicated in DNA replication?
Two - the leading strand and 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.
Is The lagging strand the strands of parental DNA?
which statement about dna replication is correct? A. the leading strand is one of the strands of parnetal Dna b. the leading strand is built continuously, and the lagging strand is built in pieces c. the lagging strand is one of the strands of parental Dna d. Dna ligase helps assemble the leading strand e. the lagging strand is built continuously
What is birectional replication in DNA?
A DNA molecule has two complementary strands, the top (leading) one is 5' to 3' and the bottom (lagging) one is 3' to 5'. The 5' carbon has a phosphate group linked to it and the 3' carbon has a hydroxyl group. During replication, both strands get replicated however DNA strands due to their molecular structure can only be replicated from 5' to 3' so the lagging strand is replicated in 5' to 3' pieces called Okazaki fragments. However, even with this, replication still happens in both strands, even if in the same direction (5' to 3').
How many stands make up DNA double helix?
The DNA double helix contains two coiled biopolymer strands. The double helix was discovered by James Watson and Francis Crick.
What is Zinn's membrane?
A Zinn's membrane is another name for a ciliary zonule, a ring of strands connecting the ciliary body with the lens of the eye.
Which strand (leading or lagging) will have the okazaki fragments?
The lagging strand.
