Answer and explanation:
Cystic fibrosis occurs due to mutations in the CFTR gene, causing deficient ion transport in patients through cell membranes with a reduction in the amount of water from bronchial secretion.
This decrease makes the secretion more adherent to the bronchial walls and compromises the cleaning of these channels, facilitating pulmonary infections.
The disease also causes the blockage of the pancreas ducts, reducing the arrival of digestive enzymes in the intestines.
For an individual to develop cystic fibrosis by mutations, it is necessary to have both chromosomes 7 with the mutated CFTR gene. This means that a person needs to inherit mutated chromosome 7 from his mother and father.
Answer:
Correct question= <em>What does the history behind the elucidation of secondary structure of DNA tell you about the role of the scientific community in advancing science? Were Watson and Crick solely responsible?</em>
Explanation
The earlier discovery of nucleotide sequence and base pairing by Levene formed the basis of later discovery and formulation of double Helix DNA structure by Waston and Crick. Thus Levene work contributed to discovery of DNA double helix structure of Waston and Crick
In addition earlier work of Franklin on X-ray crystallography data, and comprehensive research on biochemical analysis of ,molecular proportion of nucleotide by Chargaff, were another supporting bedrock on which Waston and Crick built their discovery of double helix structure of DNA.
Evidently most scientific discoveries were usually arrived at from the earlier work or discoveries, and rarely in isolation.
Mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.
Answer:
During interphase, the cell grows and DNA is replicated. ... Usually the cell will divide after mitosis in a process called cytokinesis in which the cytoplasm is divided and two daughter cells are formed.
Answer:
This is because of reasons of-
safety,
cost-effectiveness and
difficulty in accessibility of needed protein
Explanation:
In order to reduce cost of production for maximal profit, bio.companies usually design their production of therapeutic proteins in possible cost -effective way.This is to ensure maximal yields from production sales. Therefore maximum cost effectiveness is achieved through GMO rather through isolation from blood products or other sources which are expensive and capital intensive to get
In addition safety concerns during production is of ultimost importance to theses companies.Therefore when using of protein from different sources high safety measures are needed to be put in place to achieve best results. whereas GMO comes with little risks.
These companies experiences difficulty in collecting required amount of low abundant protein needed for the synthesis of therapeutic proteins, thus they will rather prefer the design of GMO for abundant supply.
