*Sickle cell disease is a constitutional corpuscular hemolytic anemia related to an abnormal structure of the globin chain. It is an autosomal recessive disease, which means homozygosity is necessary to fully express the illness.
*It corresponds to the synthesis of an abnormal hemoglobin, HbS, which is different from normal Hb (HbA).
*The S allele (located in the chromosome 11), responsible for the anomaly, is especially widespread in the African continent, it is also found in other regions of the Mediterranean.
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*Mutation GAG to GTG leading to the substitution Glutamine by a valine in position 6 of the chain of the globine.</span>
Let's discuss first about difference between micro- and macro-nutrients. Micronutrients are those which are needed in small quantities and their function is not that vast. But macronutrients are the ones which control all the metabolic cycles of the cell, so they are needed in large quantities. This is the basic difference between the two terms.
Proteins are macro-nutrients because they are needed in large amount, as they are involved in some of the most important functions of our body. For example, proteins act as enzymes, involved in immunity, maintaining homeostasis of the body, etc. That is why they are considered as macronutrients.
<span>Down syndrome
is a chromosomal condition that is associated with intellectual
disability, a characteristic facial appearance, and weak muscle tone
(hypotonia) in infancy. All affected individuals experience cognitive
delays, but the intellectual disability is usually mild to moderate.</span>
Answer: Mutualism
Explanation: The relationship between the crab and the sea anemone describes mutualism, a type of symbiotic relationship.
Mutualism describes the ecological interaction between two or more species that benefits both; typically involving the exchange of substances or services between both.
It plays a key role in ecology and is thought to have driven the evolution of much of the diversity currently in existence today.
