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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
The lagging strand is the strand of newly synthesized DNA that is formed discontinuously during DNA replication. It is not the same as the parental DNA strands from which it is being copied. The parental DNA strands serve as templates for the synthesis of the new leading and lagging strands.
It is the strand of DNA that contains the template information for creating a new copy of the other strand.
The parent strand of DNA is also refered to as the template strand. This term is used to describe processes such as DNA replication and in vitro techniques like PCR
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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.
Why does Dna have both leading and lagging Strands?
DNA replication is bidirectional, meaning it occurs in opposite directions along the template DNA strand. The leading strand is synthesized continuously in the 5' to 3' direction, while the lagging strand is synthesized discontinuously in short fragments called Okazaki fragments. This ensures that both strands are replicated efficiently and accurately.
Which of the following statements best explains why the leading and lagging strands are synthesized using two different mechanisms?
The leading and lagging strands are synthesized using different mechanisms because DNA replication occurs in a 5' to 3' direction, but the two strands of DNA are antiparallel. This means that one strand is oriented in the 3' to 5' direction (leading) and the other in the 5' to 3' direction (lagging), requiring discontinuous replication on the lagging strand.
Which statement best describes strand characteristics as it relates to DNA replication?
Strand characteristics in DNA replication refer to the direction in which new DNA strands are synthesized. DNA replication is semi-conservative, meaning each new DNA molecule consists of one original (parental) strand and one newly synthesized (daughter) strand. The strands are antiparallel, with one strand running 5' to 3' and the other running 3' to 5'.
What characteristic of DNA allows two connected DNA polymerases to synthesize both the leading and lagging strands?
The antiparallel nature of DNA strands allows for simultaneous synthesis of leading and lagging strands. One polymerase moves in the 5' to 3' direction along the leading strand, while a second polymerase moves in the opposite direction on the lagging strand to create short Okazaki fragments.
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.
Why does Dna have both leading and lagging Strands?
DNA replication is bidirectional, meaning it occurs in opposite directions along the template DNA strand. The leading strand is synthesized continuously in the 5' to 3' direction, while the lagging strand is synthesized discontinuously in short fragments called Okazaki fragments. This ensures that both strands are replicated efficiently and accurately.
Is RNA polymerase used in both leading and lagging strands of DNA replication?
No, RNA polymerase is not used in both leading and lagging strands of DNA replication. RNA polymerase is responsible for transcribing DNA into RNA during gene expression, while DNA polymerase is responsible for synthesizing new DNA strands during replication. DNA polymerase is used on both the leading and lagging strands during DNA replication.
Which of the following statements best explains why the leading and lagging strands are synthesized using two different mechanisms?
The leading and lagging strands are synthesized using different mechanisms because DNA replication occurs in a 5' to 3' direction, but the two strands of DNA are antiparallel. This means that one strand is oriented in the 3' to 5' direction (leading) and the other in the 5' to 3' direction (lagging), requiring discontinuous replication on the lagging strand.
How many strands are replicated in DNA replication?
During DNA replication, two strands of the double-stranded DNA molecule are unwound and each strand serves as a template for the synthesis of a new complementary strand, resulting in the formation of two new DNA molecules, each composed of one original strand and one newly synthesized strand.
Which statement best describes strand characteristics as it relates to DNA replication?
Strand characteristics in DNA replication refer to the direction in which new DNA strands are synthesized. DNA replication is semi-conservative, meaning each new DNA molecule consists of one original (parental) strand and one newly synthesized (daughter) strand. The strands are antiparallel, with one strand running 5' to 3' and the other running 3' to 5'.
What characteristic of DNA allows two connected DNA polymerases to synthesize both the leading and lagging strands?
The antiparallel nature of DNA strands allows for simultaneous synthesis of leading and lagging strands. One polymerase moves in the 5' to 3' direction along the leading strand, while a second polymerase moves in the opposite direction on the lagging strand to create short Okazaki fragments.
In the replication of DNA what is the name of the enzyme which joins the lagging strands together?
The enzyme responsible for joining the Okazaki fragments on the lagging strand during DNA replication is DNA ligase. DNA ligase helps to seal the nicks between the newly synthesized Okazaki fragments, creating a continuous strand of DNA.
Compare the leading and lagging strands during replication?
The leading strand is synthesized continuously in the 5' to 3' direction, making replication faster and more efficient. The lagging strand is synthesized discontinuously in short fragments called Okazaki fragments, which are later joined together by DNA ligase. This process of replication is slower and requires additional steps compared to the leading strand.
Does dna ligase help assemble the leading strand?
No, DNA ligase does not help assemble the leading strand. DNA ligase is primarily involved in the final stages of DNA replication, where it seals the nicks in the phosphodiester backbone between Okazaki fragments on the lagging strand. DNA polymerase is responsible for assembling both the leading and lagging strands during DNA replication.
Which strand (leading or lagging) will have the okazaki fragments?
The lagging strand will have the Okazaki fragments. These short fragments are created as the DNA replication machinery synthesizes the new DNA strand discontinuously in the 5'-3' direction away from the replication fork.
What is lagging strand in replication of DNA?
The lagging strand is one of the two newly synthesized strands of DNA during DNA replication. It is synthesized discontinuously in short fragments called Okazaki fragments, in the opposite direction of the replication fork movement. DNA polymerase synthesizes the lagging strand from RNA primers laid down by primase.
