Help Question 1 (3 points)
We have been learning about mutation of genes vs. epigenetic modification of genes
in class. Choose ALL correct statements:
1. Mutation refers to a permanent change in DNA sequence
2. Epigenetic modification refers to a permanent change in RNA sequence
3. The chances of mutations are far lower than epigenetic modifications
4. Epigenetic molecules could be altered by environmental factors or life events
5. Only mutations could cause cancers
6. Mutations are always inheritable while epigenetic modifications may or may not
be
7. Older twins have exactly the same genes and epigenetics.

Generally travels west to east but often shifts to north and south

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein