Nucleotides are added to the 3' end of a growing DNA chain via nucleophilic attack. In the first step of this reaction:

A. The OH group of the incoming nucleotide attacks the 5' triphosphate of the last nucleotide attached to the DNA strand.
B. The OH group of the incoming nucleotide attacks the 5' monophosphate of the last nucleotide attached to the DNA strand.
C. The OH group of the last nucleotide attached to the DNA strand attacks the 5' triphosphate of the incoming nucleotide.
D. The OH group of the last nucleotide attached to the DNA strand attacks the 5' monophosphate of the incoming nucleotide.

we would need to see the picture to answer it

thinking it would be physical characteristics

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.

the growth of the plants is affected by the heat of the light. what is the student doing?