When an area is malaria-free, the HbS allele frequency is between 0 and 2.02. Thus, option "A" is correct.
<h3>How, explain your answer briefly?</h3>In the two maps that show the allele frequency of sickle haemoglobin (HbS) and malaria endemicity in Africa, it can be seen that in the regions with no malarial outbreak or malaria-free areas coincide with the grey to lighter shades of red in the heat map of the allele frequency of HbS. The colour coding in the heat map for the allele frequency tells us that the frequencies range from 0 to 2.02 in the malaria-free areas.
Hence the answer is A)When an area is malaria-free, the HbS allele frequency is between 0 and 2.02.
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Answer:
4. Thyroid hormone levels decrease, TRH level increase, PRL level increase
Explanation:
Surgical removal of Thyroid gland will lead to hypothyroidism.
Normally, the surgery is followed by maintenance dose of thyroxine to avoid side effects.
In the presence of hypothyroidism, however, the decreased thyroid hormone will lead to increase in thyrotropin releasing hormone (TRH). increased TRH increases production of prolactin. (but less than that in prolactinoma)
