Question

Choose two (2) of the mechanisms of gene expression regulation in eukaryotic cells denoted by rows shown (7 possible in the Figure below. I will only grade your first to for completeness and will NOT grade any more that you write. If you do an EXTRAODINARY job on your answers, you may ear bonus points For each of your choices answer the following 4 questions using COMPLETE sentences 1. What are the base structural differences between molecules (pink, blue or green box for the chosen? 2. What if any processes differences between ekaryotic and prokaryotic organi? 3 What are the key steps, proteinsdenzymes, rudende modifications, rudeotide sequences, protein protein interactions, protein nucleotide interactions andior protein modifications involved? 4. Why is it important forces to regulate this level of gene expression? degraded mRNA NUCLEUS CYTOSOL degraded protein RNA DNA transcript mRNA 2 transcriptional RNA control processing control mRNA 3 mRNA transport and localization control mRNA degradation control protein degradation control protein 5 translation protein control 7 activity control active protein inactive protein

Answer 1

1) The pink structure is DNA , Blue is RNA and green is protein. The DNA and RNA plays an important role in encoding the genetic information of an individual . There is no role of protein in encoding the genetic information as the protein is a product of genetic information. Both RNA and protein acts as an enzymes and are involved in the catalytic reactions . The DNA do not takes part in the catalysis reaction. RNA enzymes are known as ribozymes . The building blocks of DNA and RNA are nucleotides where the protein is made up of amino acids . DNA is made up of four types of nucleotides that is adenine , guanine , cytosine and thymine . Whereas RNA is made up of adenine , guanine , cytosine and Uracil . Protein is made up of 20 different type of amino acids. DNA is double stranded molecule . RNA is single stranded and Protein is also single stranded. The structure of DNA is double standard. The structure of RNA is different four different type of RNA . Protein has a very complex structure which can be categorised under primary secondary tertiary and quaternary . The DNA is extremely susceptible to degradation. There is variations in the degradation of RNA and protein. DNA has a repair mechanism whereas there is no mechanism of repair in RNA and protein. DNA is present in the nucleus . RNA present in both nucleus and cytoplasm . Protein is present throughout the cytoplasm . The process of formation of DNA is replication. The process of formation of RNA transcription. The process of formation of protein is translation .

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