Answer:
Flippases.
Explanation:
Cell membrane is made of lipid bilayer and proteins are inserted or span the bilayer. Carbohydrates are attached in association with lipids and proteins in the bilayer membrane.
The enzymes are important for maintenance of the proper structure and function of the membrane. Flippase are the enzymes located in the membrane and belong to ABC transporter family. This enzyme maintain the growth and regulation of halves of the bilayer and transport lipids from one site of the membrane to the another site.
Thus, the answer is flippase enzyme.
Answer:
"nothing but trouble" is all I know that stands for nbt
Explanation:
nothing but trouble
Hello There!
The correct answer is B. Cholestrol and Vitamin D.
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Ans.
Sickle-cell disorder is a genetic disorder, which shows defected red blood cells, due to mutation in the genes for hemoglobin protein.
Malaria is common in sub-Saharan Africa region and there, natural selection favored gene for sickle cells, because it might be beneficial to people having sickle cell disease that makes them able to survive in such condition and transmit their genes to offspring.
On the other hand, in those Africans, who moved to United States, where malaria is uncommon or absent, natural selection favored normal, wild type genes, resulting in fewer people with defected sickle cell.
Hence, sub-Saharan African population shows higher percentage of mutated gene for sickle cell as compared to population of United States.
Thus, the evolutionary process behind this difference is 'natural selection.'
