Iron
A side note about haemochromatosis:
Haemochromatosis is a disease where there is too much iron is in the body. It is the most common form of iron overload disease. There are two types of haemochromatosis:
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Primary haemochromatosis is a genetic disorder inherited from family members. People with this condition absorb too much iron and it ends up accumulating in the body, especially in the liver. </span><span>
Secondary haemochromatosis is caused by other blood-related disorders such as anaemia, or may be due to many blood transfusions, long term alcoholism and/or other health conditions. </span><span>If left untreated, iron overload can lead to liver damage. That’s why it’s important to receive treatment as soon as possible after diagnosis to prevent further complications, including liver disease, liver cirrhosis, liver failure, liver cancer, heart disease, arthritis or diabetes. Some organ damage can be reversed if detected early enough and treated appropriately.
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cigarettes
If you smoke cigarettes there’s a chance that you are causing damage to your liver – increasing your risk of developing liver cancer and decreasing your liver’s ability to rid your body of dangerous toxins. In turn, this could leave you more susceptible to the damaging effects of some medications on the liver too. </span>
In simple terms, Gene expression can be stated as the process by which the heredity details in a gene sequence a be made into a functional gene.
<u>Explanation:</u>
- The odd one for this question is probably would be "it occurs because of cellular signals within your body".
- It explains how a cell functions. In Gene expression, the gene encodes the protein and the message from DNA to RNA gives the cell functions.
- It is the specific combination of genes that are turned on or off. It can be stated as the process of turning off and turning on, it acts as a switch to on and off it is known as the gene expression or gene regulation.
- It creates different DNA within each of your cell types. The unique design of gene expression results in unique and different combinations of proteins and makes each cell types.
Answer AND Explanation:
<u>FACTORS THAT CAUSE GENETIC VARIATIONS</u>
- Crossing over. At the chiasmata during prophase I of meiosis, breakage may occur and exchange of genetic information may take place. New gene combinations which result in variations.
- Independent assortment. The arrangement of homologous chromosomes at the equator of the spindle during metaphase of the first meiotic division is random. These homologous chromosomes segregate into different daughter cells which contain different genetic combinations which brings about variation
- Fertilisation permits parental genes to be brought together in different combinations. This is the cause of variations in members of the same family.
- Mutation is the spontaneous change in the genetic makeup of an organism. These changes may be inherited by the offspring therefore beginning variation.
Answer:
The correct answer is option D.
Explanation:
The process of translation, that is, synthesis of proteins takes place until the occurrence of the termination process. The termination takes place when the ribosome encounters a stop codon. These are UAG, UAA, and UGA. As there are no molecules of tRNA, which can identify these codons, the ribosome determines that the process of protein synthesis is complete. The formed protein then get discharged and the complex of translation move away from each other.
