During which phase of the cell cycle are chromosomes replicated?
a. s phase
b. m phase
c. cytokinesis
d. metaphase.

DNA replication takes place only in the S phase of the cell cycle.

In molecular biology, DNA replication is the organic means of creating two same duplicates of DNA from one original DNA molecule. This system happens in all existing organisms and is the foundation for biological inheritance.

The cells proceed to grow in G-1, S and G-2 phase. Although DNA replication takes place just in the S phase of the cell cycle.

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answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus