To demonstrate DNA replication, Doug draws a model on construction paper.
NITROGENOUS
BASES
SUGAR PHOSPHATE
BACKBONE
In order to show replication, Doug should carry out which of the following steps first?
SC.912.L. 16.3
Fold the model in half lengthwise.
Cut the nitrogenous base pairs where they meet.
Draw a second, identical model of a DNA molecule.
Separate the nitrogenous base pairs from the sugar phosphate backbone.
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Ответ:
I think it’s D
Explanation:
Because for replication to occur the opening of the double helix must separate from the DNA strands
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