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Tutor profile: Bill N.

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Bill N.
12 years on line tutoring experience, elem school to college level math and science
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Questions

Subject: Pre-Algebra

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Question:

Simplify the following second degree polynomial and name to process used to do so. (x + 4) (x-6) =

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Bill N.
Answer:

FOIL First, Outside, Inside, Last x x x = x^2 x x -6 = -6x 4 x x = 4x 4 x 6 = -24 x^2 - 2x -24

Subject: Biology

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Question:

What are the three types of RNA used in protein synthesis and what are their functions?

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Bill N.
Answer:

mRNA - messenger RNA carries genetic information copied form the DNA template on the chromosomes found on the nucleus in the form of three nucleotides referred to as codons to the rRNA rRna - ribosomal RNA in where mRNA codons are matched to tRNA carried amino acids to form polypeptides known as proteins tRNSA - transfer RNA carries the amino acids found in the cytosol to the rRNA to match with the mRNA codon

Subject: Anatomy

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Question:

Why does and tendon or ligament take so long to heal when injured?

Inactive
Bill N.
Answer:

Tendons and ligaments are composed of a fibrous tissue called collagen and as such have a very poor blood supply thus hindering rapid healing.

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