Scelta multipla
Why does a DNA strand grow only in the 5' to 3' direction during replication?
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14. DNA Synthesis
Introduction to DNA Replication
Scelta multipla
Why is DNA synthesis expected to be more complex in eukaryotes than in bacteria?
A
Eukaryotic DNA is single-stranded, requiring more enzymes for replication.
B
Eukaryotic cells replicate DNA only during cell division, unlike bacteria.
C
Eukaryotes have multiple origins of replication on each chromosome.
D
Eukaryotes use a different set of nucleotides for DNA synthesis.
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Understand the structure of eukaryotic and bacterial DNA: Eukaryotic DNA is organized into multiple linear chromosomes, whereas bacterial DNA is typically a single circular chromosome.
Recognize the concept of origins of replication: Eukaryotic chromosomes have multiple origins of replication to ensure efficient and timely replication of their larger genomes.
Consider the replication machinery: Eukaryotic cells require a more complex set of enzymes and proteins to manage replication across multiple origins and larger chromosomes.
Acknowledge the cell cycle: Eukaryotic DNA replication is tightly regulated and occurs during the S phase of the cell cycle, adding complexity compared to the continuous replication in bacteria.
Reflect on the implications of multiple origins: Multiple origins of replication in eukaryotes allow simultaneous replication of different sections of the chromosome, which is necessary due to the larger size and complexity of eukaryotic genomes.
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