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Luke S.
Currently a dual MS/MBA students with Tufts Medical University and Brandeis University
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Health and Medicine
TutorMe
Question:

In human anatomy, what is the difference between abduction and adduction?

Luke S.
Answer:

In order to answer this, we must first define the midline. A midline is a plane that divides our bodies in half from left and right. It's almost a line running through our nose to the floor (I would show an image to help). Based on this midline we can define adduction as any movement or muscles that bring limbs closer to the midline. Abduction is the opposite and occurs when limbs move further away from the midline. Thus is you raised and stretched your arms this would be an abduction, and if you return your arms back to your sides this would be adduction.

Basic Math
TutorMe
Question:

A man paid one hundred dollars for apples and bananas. He paid two dollars per apple and one dollar per banana. If he bought twice as many apples as bananas, how many bananas did he buy?

Luke S.
Answer:

The number of bananas bought is x The number of apples bought is 2x So, 100= 2 (2x) + 1(X) 100= 4x + X 100= 5x x= 20 Therefore he bought 20 bananas To check this we can see twenty bananas, at $1 per banana, is twenty dollars we then add forty apples (he bought twice as many apples), at $2 per apple, is eighty dollars 20 + 80 = 100

Biology
TutorMe
Question:

What are the 3 principal steps associated with the formation of mRNA, and what is the purpose of each step?

Luke S.
Answer:

Step 1: is capping which occurs at the 5' end of eukaryotic mRNA. This process allows for maturation of the mRNA and protects the mRNA structure against specific enzymes. Step 2: is polyadenylation which occurs at the 3' end. Similar to capping this process has protective and reactive functions and form the polyA tail. It is simply a bunch of adenine nucleotides in a row. Step 3: is splicing. This is a process which allows the removal of unimportant, non-coding information, or introns. Coding segments of RNA called exons are then patched together.

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