Why did we not evolve with one central repository of DNA rather than having it replicated throughout the body?
Assume that the hereditary information carried in genes and DNA is responsible for a lot of the differences we observe in humans and other living things. How could just four different bases in DNA strands be responsible for the almost endless variety found in nature?© BrainMass Inc. brainmass.com October 16, 2018, 8:46 pm ad1c9bdddf
1. Life emerges as a single cell, which is the result of the union of an egg and a sperm, with a single DNA strand. Such a DNA strand contains a complete representation of all aspects related to the physiology of a living organism. It also contains information regarding the process of formation of the body of an organism by repeated cell divisions, starting from a single cell. Each cell will be provided with information regarding when it should split into two identical cells, split into different kinds of cell in order to enable tissue differentiation, cease to grow when the body or a particular organ reaches maturity, and grow afresh in order to replace the lost tissue due to injury. The complete information regarding all the above mentioned aspects is encoded into a single molecule. Squeezing such huge amount of data into each and every cell in the body has certain ...
1. Life emerges as a single cell, which is the result of the union of an egg and a sperm, with a single DNA strand. Such a DNA strand contains a complete representation of all aspects related to the physiology of a living organism. Squeezing such huge amount of data into each and every cell in the body has certain benefits such as autonomy and protection.
- You have a rabbit with an unknown illness. Apply Koch's postulates to prove that a specific bacterial species is responsible for the rabbit's illness. Identify all four postulates in your answer and describe how you would set up experiments to specifically address each postulate.
- List and describe 2 distinguishing features of prokaryotes and eukaryotes (ie: not in common) and 2 features that prokaryotes and eukaryotes have in common.
- Briefly describe the debate between the theory of spontaneous generation and the theory of biogenesis. Explain how Louis Pasteur's experiment with the S-neck flasks in the 1800s resolved this debate. Include a detailed description of Pasteur's experiment and an analysis of how it successfully proved one theory over the other.
- Explain the code of DNA and how the code gets translated into an amino acid sequence. Be sure to explain each step fully.View Full Posting Details