Explanation:
the last option is the correct answer
They are called <span>nucleotides. </span>
A is the correct answer :)))))
1) RNA polymerase finds the promoter sequence on DNA.
2)RNA polymerase reads the DNA and builds complementary sequence.
3) Intron séquences are spliced out and exons are joined together.
4) The ends of the mature transcript are protected before it leaves the nucleus.
5) The mRNA attachés to the ribosome.
6) transfer RNA arrives at the ribosome and the anticodon complements to the mRNA codon.
7)amino acids form peptide bonds as tRNA molecules match the mRNA.
Hey! here is your answer
passive refilling of the heart occurs During ventricular systole, the blood pressure
