GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The prokaryotic chromosome has histones, whereas eukaryotic chromosomes do not.
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Prokaryotic chromosomes have a single origin of replication, whereas eukaryotic chromosomes have many.
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The rate of elongation during DNA replication is slower in prokaryotes than in eukaryotes.
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Prokaryotes produce Okazaki fragments during DNA replication, but eukaryotes do not.
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Detailed explanation-1: -Prokaryotic chromosomes have histones, whereas eukaryotic chromosomes do not. 2. Prokaryotic chromosomes have a single origin of replication, whereas eukaryotic chromosomes have many.
Detailed explanation-2: -Eukaryotic DNA replication requires multiple replication forks, while prokaryotic replication uses a single origin to rapidly replicate the entire genome. DNA replication always occurs in the nucleus. Eukaryotic DNA replication involves more polymerases than prokaryotic replication.
Detailed explanation-3: -Prokaryotic chromosomes have one origin of replication, while eukaryotic chromosomes have multiple origins. This is because eukaryotic chromosomes are much larger, so multiple origins are needed to replicate the entire chromosome in a short amount of time.
Detailed explanation-4: -While prokaryotic genomes only have one origin of replication, multiple origins are present simultaneously in the eukaryotic genome to allow for faster replication. Origin of replication: A particular sequence in a genome at which replication is initiated. DNA replication: The process by which DNA is copied.
Detailed explanation-5: -The majority of prokaryotes have a single replication origin, yet the rate of replication is extremely high. In E. coli, replication occurs at a rate of 1000 nucleotides per second and takes 18 minutes to complete.