Answer:
<h2>A</h2>
Explanation:
1. Sickle cell anemia is an inherited condition, disorder (disease).
2. It is a recessive condition, in which red blood cell become mutated and converted to a sickle like shape, and there aren't enough healthy red blood cells to carry oxygen throughout the body.
3. This condition normally occur when, there is inheritance of two abnormal or mutated copies of the β-globin gene, one allele from each parent.
4. β-globin gene makes haemoglobin.
5. Sickle cell anemia results when glutamic acid being substituted by valine at position 6 ( in short E6V substitution).
6. So, it a single base-pair substitution in the gene encoding the beta subunit.
Pulmonary and systemic circulation.
Answer: B Phospholipid bilayer
Explanation:
If the lipid bilayer is broken, the internal organelles and the cytoplasm of the cell are dispersed, since this layer makes up the cell membrane, cellulose is part of the structure of the wall of plant cells, so the response A does not is correct, answer C is false because actin filaments participate in the contraction of muscle fiber and not membrane, answer D is incorrect because nuclear pores have as a function the passage of substances to the nucleus and the response E is incorrect because the starch is a carbohydrate, which has plants in reserve to be consumed.
It also reabsorbs water found in the undigested food
The independent SiO4 4- tetrahedra join with the Mg2+ and Fe2+ ions to generate the mineral olivine in the rock peridotite.
Olivine is the naming of group-producing minerals, which are usually found in ultramafic and mafic rocks, like gabbro, basalt, diabase, dunite, and peridotite. They are generally green in appearance and exhibit constituents, which generally range between Fe2SiO4 and Mg2SiO4.
