The process of replication of DNA begins at:
Correct answer: D. One or more places where there is a specific sequence of nucleotides
- A. One place only without any specific sequence of DNA
- B. One or more places without any specific sequence of DNA
- C. Any place with the uncoiling of two strands of DNA
- D. One or more places where there is a specific sequence of nucleotides
Explanation
The process of DNA replication begins at one or more places where there is a specific sequence of nucleotides. These specific sequences where DNA replication initiates are known as the origins of replication. The DNA molecule is unwound, and the replication machinery assembles at these specific sites, allowing for the controlled and accurate duplication of the DNA. The presence of origins of replication ensures that DNA replication occurs at the right place and at the right time in the cell cycle. The exact locations of origins of replication vary between organisms, and the specific DNA sequence recognised at these origins can differ, but they are always specific and serve as starting points for DNA replication.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chromosomes questions
The enzyme that attaches the Okazaki fragments in the lagging strand is called:
Which process does not occur during the formation of mRNA?
Translocation of ribosomes on mRNA occurs due to:
The formation of a new strand of DNA from a template strand is the function of:
As a result of replication, parental DNA would become completely dispersed and that strand of all the daughter molecules would be a mixture of old and new DNA. This is known as the _:
Meselson and Stahl transferred a few bacteria grown in N15 medium to N14 medium for replicating their DNA. What would be the result after rounds of replication?