Formation of the peptide bond could be described as: A) a spontaneous reaction between two peptides, forming a covalent bond B) a ribosome-catalyzed process occurring in the nucleus C) a tRNA catalyzed process D) a ribosome-catalyzed dehydration reaction (H_2O is released) E) transcription, a key process in gene expression. Epigenetic inheritance is defined as the inheritance of: A) nuclear DNA from one cell generation to the next B) extra-chromosomal DNA from one cell generation to the next C) mRNA from one cell generation to the next D) mitochondrial DNA E) chromatin states from one cell generation to the next What is chromatin remodeling? A) the first stage of mitosis B) the changing of nucleosome position C) the changing of amino acid position D) the changing of nucleotide position E) None of the answers are correct. We know that DNA is made up of four nucleotides and that codons are three nucleotide long. Hence, there are 64 possible codons (4^3 = 64). Knowing that the minimum n of for the code is 21 (20 amino acids and one stop codon), what codon length would be required if only three nucleotides were present in the genome? Be sure to show your calculation.