Africa, australia, north america, south america, antarctica, asia, and europe
Ribosomes are where protein synthesis occurs.
B.
<span>hello there hester , i would say needed to form cell membranes</span>
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.
Alveoli walls are composed of Type 1 and Type 2 alveolar cells
