<u>Answer:</u>
Searches for its food sources by growing outward and retracts.
Option: (D)
<u>Explanation:</u>
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The slime mold is a eukaryotic organism with a nucleus and they grow in warm regions on decaying log/vegetation.
- When food is available the slime mould exists as a single celled organism.
- When there is a shortage of food the slime mold extends into branches in search of food.
- It extends outward to the location where the food is present. Then it retracts to its initial position.
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.
Answer:
Genotype for AB: IA and IB
Genotype of for O: ii
Answer:
ATP consumed = 2 molecules
ATP produced = 2 molecules.
Explanation:
Arsenate does not produce 1,3-bisphosphoglycerate, so it can be deduced that at least two ATP molecules are produced through normal glycolysis, remembering that phosphoglycerate kinase allows the reaction between 1,3-bisphosphoglycerate transforming it into 3 -phosphoglycerate and generating two ATP, phosphoglycerate kinase catalyzes this reaction and gives 2 ATP.
Answer:
The soda ash is obtained in one of two ways: it can be manufactured by passing carbon dioxide and ammonia through a concentrated solution of sodium chloride (table salt). In our case, it is mined in the form of an ore called trona.