What must first occur for transcription to begin?
A) mRNA moves the code from the nucleus to the ribosome for protein
B) production. A gene is expressed through protein production.
C) RNA polymerase attaches to the promoter.
D) A repressor protein must attach to the operator.

h

explanation:

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

i think it is dna, i'm not totally sure but i think it might be.