Question

Chromatin or chromosomes are duplicated during:

G2 phase
S phase
prophase
G1 phase

Answer 1

@thelittlemerpmaid

Answer 2

I think it's the S phase :)

Answer 3

thx

Answer 4

Elcna's right. During S phase, which follows G1 phase, all of the chromosomes are replicated. If you'd like more info on this subject, or if you have more questions relating to this, here's a really good website for you: http://cyberbridge.mcb.harvard.edu/mitosis_4.html