During DNA replication, the leading and lagging strands are synthesized differently. Which of the following statements correctly describes the synthesis of the lagging strand?Question 5Answera.The lagging strand is synthesized continuously in the 3' to 5' direction.b.The lagging strand is synthesized discontinuously in the 5' to 3' direction, forming short fragments.c.The lagging strand is synthesized discontinuously in the 3' to 5' direction.d.The lagging strand is synthesized continuously in the 5' to 3' direction.
Question
During DNA replication, the leading and lagging strands are synthesized differently. Which of the following statements correctly describes the synthesis of the lagging strand?Question 5Answera.The lagging strand is synthesized continuously in the 3' to 5' direction.b.The lagging strand is synthesized discontinuously in the 5' to 3' direction, forming short fragments.c.The lagging strand is synthesized discontinuously in the 3' to 5' direction.d.The lagging strand is synthesized continuously in the 5' to 3' direction.
Solution
The correct answer is b. The lagging strand is synthesized discontinuously in the 5' to 3' direction, forming short fragments. This is because DNA polymerase can only add nucleotides in the 5' to 3' direction. On the lagging strand, this results in the creation of Okazaki fragments, which are later joined together by the enzyme DNA ligase to form a continuous strand.
Similar Questions
Which of the following is TRUE of the DNA lagging strand? A) It is synthesized continuously in the 5' to 3' direction B) It is synthesized continuously in the 3' to 5' direction C) It is synthesized discontinuously in short fragments in the 5' to 3' direction D) It is synthesized discontinuously in short fragments in the 3' to 5' direction
Which statement about DNA replication is CORRECT?View Available Hint(s)for Part BDNA ligase helps assemble the leading strand.The leading strand is built continuously, and the lagging strand is built in pieces.The leading strand is one of the strands of parental DNA.The lagging strand is one of the strands of parental DNA.The lagging strand is built continuously.
Which of the following statements is true regarding DNA replication?Choose 1 answer:Choose 1 answer:(Choice A) During lagging strand synthesis, ligase joins together multiple Okazaki fragments.ADuring lagging strand synthesis, ligase joins together multiple Okazaki fragments.(Choice B) During leading strand synthesis, DNA polymerase synthesizes short, discontinuous strands of DNA.BDuring leading strand synthesis, DNA polymerase synthesizes short, discontinuous strands of DNA.(Choice C) During lagging strand synthesis, topoisomerase separates complementary strands of DNA.CDuring lagging strand synthesis, topoisomerase separates complementary strands of DNA.(Choice D) During leading strand synthesis, a DNA primer helps initiate DNA synthesis.DDuring leading strand synthesis, a DNA primer helps initiate DNA synthesis.
Which is true during DNA replication?Group of answer choicesDNA ligase replaces the nucleotides in the RNA primer with DNA on the newly synthesised strands.RNA primers bound to both the leading and lagging strand are degraded by 5' - 3' exonucleases.DNA polymerase III synthesises the leading strand and DNA polymerase I synthesises the lagging strandPrimase is required to make primers on the lagging strand only
Below is a sequence of DNA that is going to be replicated. This is the sequence of the leading strand and only shows the position at which primase binds to synthesise RNA primers. Based on this sequence, which RNA primers would allow replication from both the leading and lagging strands?5’ ….CAAGGCTCCC….GCGCGTAGGA….GACCTTTATT 3’ Group of answer choicesFrom the leading strand: 5’ GGGAGCCUUG 3’ and 5’ GCGCGUAGGA 3’From the lagging strand: 5’ GACCUUUAUU 3’From the leading strand: 5’ GACCUUUAUU 3’From the lagging strand: 5’ GGGAGCCUUG 3’ and 5’ GCGCGUAGGA 3’From the leading strand: 5’ CAAGGCUCCC 3’ and 5’ GCGCGUAGGA 3’From the lagging strand: 5’ AAUAAAGGUC 3’From the leading strand: 5’ AAUAAAGGUC 3’From the lagging strand: 5’ CAAGGCUCCC 3’ and 5’ GCGCGUAGGA 3’
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.