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polet [3.4K]
2 years ago
5

Is a plasma membrane composed of carbohydrates, lipids or both

Biology
2 answers:
Flauer [41]2 years ago
7 0

just carbohydrates my guy

Ipatiy [6.2K]2 years ago
5 0

Plasma membrane is composed of lipids, proteins and carbohydrate  

Plasma membrane is made up if bilayer phospholipids which has one polar and other non polar head proteins.


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What is the difference between directional selection and disruptive selection
morpeh [17]
Directional selection is where one phenotype is favored, so an example would be "a population of madagascar hissing cockroaches suffers heavy predation from lizards. Because their heads are small, the lizards are unable to eat the very largest adult cockroaches, and instead prey upon small and medium sized adults, so as a result the large cockroaches are favored and live". 
Meanwhile, disruptive selection is where both extreme phenotypes are favored, an example would be "a population of rabbits can have black fur, white fur or grey fur. This population of rabbits lives in an area of white rocks. When a local volcano erupts, black volcanic rock now dots the landscape amongst the white rocks. Now the black and white rabbits live longer because the black and white spots on the landscape camoflauge them. The two extreme phenotypes are being favored."
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Explanation:

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3 years ago
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dsp73
Flowers and pollinating insects are examples of <span>coevolution. </span>
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3 years ago
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slamgirl [31]

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2 years ago
Why are polygenic diseases less suited to gene therapy?
Nadya [2.5K]

Answer:

<u>Polygenic therapies are more likely to show </u><u>unintended effects</u><u> in other regions of the genome likely resulting in harmful diseases.</u>

<u />

Explanation:

Gene therapy involves biotechnological techniques that add or remove gene sequences in the genome. These are typically used in eliminating harmful genes that cause genetic diseases or disorders and are generally thought to improve an individual's quality of life.

Polygenic traits are controlled by several genes. Similarly, polygenic diseases may be caused by variations in several gene sequences. These include hypertension, heart disease, and diabetes. Polygenic therapies are more likely to show unintended effects in other regions of the genome, leading to other deleterious disease-causing effects.

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