Based on this information following statements are made: (i) represents the leading strand while (ii), (ii) and (iv) represent the Okazaki fragments. Among the Okazaki fragments, synthesis of (iv) occurs […]
Tag: DNA REPLICATION CSIR NET PYQ
DNA REPLICATION CSIR NET PYQ
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CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Telomeres Are Made of Simple Tandem Repeats: Understanding Their Structure and Role in Chromosome Protection
Telomeres consist of (1) Simple tandem repeats (2) Nucleolar organizer region (3) GC rich sequences (4) Single copy repeats Introduction Telomeres are specialized structures located at the ends of […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Okazaki Fragments Hybridize Specifically to the Lagging Strand (L Strand) in E. coli DNA Replication
Two experiments were performed. In the first one, Okazaki fragments were prepared from a replicating cell of E. coli grown in the presence of 32P. In the other,the two strands […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Does Plasmid or Bacterial Genome Replicate Faster Using the Same Replication Machinery?
If bacterial genome and plasmid are allowed to replicate in same manner using same replication machinery then (1) Plasmid DNA will complete replication first (2) Bacterial DNA will complete replication […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
How Multiple Origins of Replication Enable Rapid Mammalian DNA Replication Despite Slow Fork Speed
Speed of DNA replication in mammals is 256 bp/sec, so for replication of 3X109bp DNA it will take a very long time, but it is completed within few hours because […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Understanding How E. coli Divides Every 20 Minutes While Genome Replication Takes 40 Minutes: The Role of Overlapping Replication Rounds
In E. coli grown under nutrient rich conditions, replication of entire genome takes about 40 min., yet it can divide every 20 min. This is so because: (1) While E. […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
How Uni-directional Replication Affects E. coli Genome Duplication Time Compared to Bi-directional Replication
E. coli takes 40 min. to duplicate its genome using a bi-directional mode of replication. If E. coli were to use uni-directional mode of replication to synthesize a full copy […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
How to Calculate E. coli Generation Time with Overlapping DNA Replication Cycles
It takes 40 minutes for a typical E. coli cell to completely replicate its chromosome. Simultaneous to the ongoing replication, 20 minutes of a fresh round of replication is completed […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Regulation of Replication Initiation in E. coli: Which Statements About SeqA, DnaA, ATP/ADP Ratio, and Hda Are Incorrect?
30. In all organisms, it is critical that replication initiation be tightly controlled to ensure that chromosome number and cell number remain appropriately balanced. Given below are several statements regarding […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Which Statements About DNA Replication Initiation Regulation in E. coli Are Incorrect? Roles of SeqA, DnaA, ATP/ADP Ratio, and Hda Protein
In all organisms, it is critical that replication initiation be tightly controlled to ensure that chromosome number and cell number remain appropriately balanced. Given below are several statements regarding regulation […]
