The process of constructing an mRNA molecule from DNA is know a transcription. The bases pairing rules ensure that the DNA code is conserved in the sequence in the mRNA
2 times pro year and sometimes 3 times
Answer:
an element is a pure substance which can not be spilt into simpler substances by chemical means
Explanation:
examples hydrogen, oxygen, copper
Answer:
D
Explanation:
Most of the energy in the United States comes from the burning of fossil fuels (coal, oil, natural gas). Hope this helps!