I would say DNA needs to be in a double helix so it can be unraveled and duplicated during cell mitosis
The correct answer is "reefs".
Shallow-marine environments are considered to be an area among the shore and deeper water, along with a reef wall or a shelf break. This surroundings is characterized by means of oceanic, geological and organic conditions, as described underneath.
The chromosomes migrate to the equator of the spindle apparatus, they line up in the middle. meta means middle
I enjoyed learning about punnet square in school.
A base substitution of G:C to A:T after two rounds of replication.