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ELEN [110]
2 years ago
7

PLZ HELP!!!! urgent. question is on the picture. I will mark whoever answers first brainliest . PLZ help!!!! urgent

Biology
1 answer:
DedPeter [7]2 years ago
7 0
The answer is not A or D. I'll reread to get the correct answer!!!
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What two types of macromolecules are the main components of myelin? A. carbohydrates and lipids B. proteins and nucleic acids C.
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Answer: Option A) carbohydrates and lipids

Explanation:

Myelin is present in the axons of nerve cells. It is composed of a class of lipids called sphingolipids with choline, galactose, glucose present in the chemical composition alongside N-acylsphingosine.

Thus, Myelin is composed of lipids and carbohydrates

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3 years ago
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Why might an individual with AIDS have difficulty fighting off otherwise harmless infections?​
Fynjy0 [20]

Answer:

Having HIV/AIDS weakens your body's immune system. It destroys the white blood cells that fight infection. This puts you at risk for opportunistic infections (OIs). OIs are serious infections that take advantage of your weak immune system.

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2 years ago
The following diagram shows a DNA template which is 70bp long (spaces indicate 10bp blocks) and the sequence of 4 primers. What
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NONE of these DNA fragments can be completely amplified by using these primer combinations. PCR is a molecular biology technique.

<h3>What is PCR?</h3>

Polymerase chain reaction (PCR) is a technique used in molecular biology to replicate (amplify) a given fragment of DNA.

In this technique (PCR) primers sequences must be used to add nucleotides to the amplified DNA strands during DNA replication.

These nucleotide primers must be sequence complementary to the fragment of DNA desired to be amplified by PCR.

In this case, none of the DNA fragments can be fully generated by using these primers or any of their combinations.

Learn more about PCR here:

brainly.com/question/7177771

8 0
2 years ago
100 POINTS!! I need the final document for Unit 5: Graphing Relationships Involving Electromagnets Lab Sheet. I am on Connexus,
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I have nothing to go on. You need to include some pictures or add more data.

Explanation:

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