Gene mutations can be positive, negative, or neutral. Suppose that the normal gene in Model 2 produced a polypeptide that was necessary for cellular respiration.
A) Choose a mutation from those in Model 2 that might be positive for a cell. Explain your reasoning by relating the mutation to the cellular respiration process.
Genes encoded in our DNA result in the production of proteins that perform specific functions within human's cells and various environmental factors and spontaneous events can lead to changes in genes, these changes are called mutations, can lead to alterations in the structure and activity of the proteins in the cells use. Mutations are the source of all new alleles in nature and arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Therefore,a gene mutation is a change in the sequence of nucleotides that occurs during cell replication (mitosis and meiosis) within a single coding section of DNA. Variations in alleles lead to variations in organisms within a population, cellular respiration, i.e. the reduction of inspired oxygen to water, which powers cell function, also generates highly reactive oxygen species that can damage DNA, with the purine bases G and A being particularly susceptible to this kind of attack,so Positive mutations lead to the organism having a better chance of survival, which means the mutation may be passed on to the offspring.
B) Choose a mutation from those in Model 2 that might be negative for a cell. Explain your reasoning by relating the mutation to the cellular respiration process.
Due to one's metabolism, the human body replaces every cell within the cellular respiration process and any mistakes can also occur in the transcription of mRNA or the translation of a polypeptide. However, these changes are considered to be negative mutations, because they are not permanent changes to the cell, however such mutations may lead to an early death probably before the organism can produce offspring.
An extracorporeal liver device is similar to a kidney dialysis because this is the device used for liver dialysis.
Liver dialysis or technically known as Single-Pass Albumin Dialysis is designed to remove protein-bound toxins. It is the simplest form of albumin dialysis which utilizes the rudimentary principles of hemodialysis or hemodiafiltration. The dynamics of this procedure begins with the patient's blood flowing through a standard high-flux dialyzer that is impermeable to albumin. This is then dialyzed against a dialysate with an albumin concentration of 2%-5%, which is discarded after a single pass. It allows the removal of albumin-bound molecules that are minute enough to pass through the porous membrane and as well as water-soluble toxins.
The significance, point, message, or meaning of the story would all work.
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Answer:
The answer is B. A book sitting on a high shelf.
Explanation:
Because the book is balanced, and something that is balanced stays balanced until you move it.
Answer:
the sun or grass
Explanation:
first the sun because the sun helps produce photosynthesis which grows the grass so that other animals can eat from the grass
