False, pernicious anemia may take up to 5 years to show symptoms. However, the oxygen starts to get depleted within the first 6 months in thalassemia major.
Pernicious anemia:
In this condition, the body is unable to absorb vitamin B12 which leads to lowered amount of red blood cells which are responsible for carrying oxygen throughout the body. It is an autoimmune disease in which antibodies attack their own cells in the lining of the stomach which affects the absorption of vitamin B12. The symptoms of pernicious anemia are dizziness, fatigue, diarrhea, constipation, breathlessness, and loss of appetite. The depletion of oxygen is seen in thalassemia major within 6 months.
Learn more about pernicious anemia here,
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Recessive gene, both parents must give a recessive (or small letter of the phenotype, example ‘a’ and not ‘A’) gene for that genotype to be present. An example is blonde hair or blue eyes.
<span>Alveolar sacs are the part of the respiratory system where the exchange of air happens.
Inhalation is the
process where oxygen is taking in to the respiratory system thru the
nasal passageways and to the tiny alveolar sacs of the lungs. This
process also expands the lungs and the diaphragm heightens or elevates
upward.
The counterpart of inhalation is exhalation, where the
carbon dioxide is taken out of the lungs in opposite of the oxygen
passageways.
This two exchange is called the gas exchange or
respiration which happens in the respiratory system responsible for
enabling and providing oxygen throughout the body. </span>
Answer:
Mitosis results in two identical daughter cells, whereas meiosis results in four sez cells so yeah
