Week 3 TMW.docx - TMW HOMEWORK Chapter 7 DNA replication...

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TMW HOMEWORK Chapter 7 DNA replication requires a large amount of energy, yet none of a cell’s ATP energy supply is used. Why isn’t it? DNA replication requires a large amount of energy, basically the joined strands of DNA are split into two and a template is used to create a copy of the strand. The DNA nucleotides are linked by a group of 3 phosphates, splitting this group releases the energy required for DNA replication to occur due to its high energy bonds. In bacteria, polypeptide translation can begin even before mRNA transcription is complete. Why can’t this happen in eukaryotes? One of the major differences between a prokaryote and eukaryote is in the cell structure. Eukaryotes transcribes RNA inside its nucleus, a structure not found in prokaryotic cells. This is done because the RNA is formed inside the nucleus first in transcription then it is sent outside of the cell in order for translation to occur. Saccharomyces cerevisiae A species of yeast that is very important to food production. It is a unicellular organism, that reproduces with a process called budding.
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