Answer:
This indicates that the expression of genes depends partly on environment.
Explanation:
The case shown in the question is showing a situation where there was a genetic interaction with the environment, resulting that gene expression depends in part on the environment.
Gene and environmental interactions are revealed by penetrance and expressiveness. Penetrance is the percentage of individuals with a given gene that have a phenotype linked to this gene, such as children and parents who have the same height. In cases of penetrance, a genotype may not express the expected phenotype due to gene influences and environmental effects, as happened to the couples' children shown in the question.
Answer:
What iron and folic acid supplements have in common is that both are frequently prescribed for cases of anemia.
Explanation:
Iron and folic acid supplements are necessary and commonly used in the treatment of anemia. Clinical anemia is a condition due to decreased red blood cells, hemoglobin, or lack of iron.
- <u>Iron</u> is an important part of hemoglobin, a molecule found in red blood cells that allows the transport of O₂ and CO₂ gases.
- <u>Folic acid</u> is a necessary cofactor for the synthesis of new cells, including red blood cells or erythrocytes.
The joint use of folic acid and iron supplements in cases of anemia contributes to the formation of new erythrocytes and hemoglobin molecules, in addition to improving and preventing anemia by providing sufficient iron deposits for these cells to fulfill their function.
The other options are not correct because:
- <em>Antibiotics are used in </em><em><u>septicemia</u></em><em>.
</em>
- <em>Folic acid and iron are </em><em><u>not related to the amount or health of the leukocytes</u></em><em>.
</em>
- <em>Folic acid and iron are </em><em><u>not used to inhibit platelet aggregation</u></em><em>.</em>
The normal function of a gene is to __________.
A.
encode a protein
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