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ale4655 [162]
3 years ago
7

What are introns and Exons??

Biology
1 answer:
jeka943 years ago
3 0
Introns are parts of genes that do not directly code for proteins. (2)

Exons are parts of DNA that are converted into mature messenger RNA (mRNA). (6) The process by which DNA is used as a template to create mRNA is called transcription.
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4 years ago
Identify the primary region of the ulna that forms the hinge joint with the humerus.
wel

<u>Answer:</u>

<em>Trochlear notch is the primary region of the ulna that forms the hinge joint with the humerus. Trochlear notch is the upper cavity part of ulna that has the purpose of fitting the trochlear part of the humerus</em><em>.</em>

It is the hinge joint in the elbow region that makes the hand flexible to rotate. The <em>notch is a semicircular hollow cavity structure in the human arm to fit </em>in the humerus bone which is the bone above ulna in human arm.

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3 years ago
to be possible answer to a scientific question a hypothesis must be a.testable b. unique c. written d. controlled​
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4 years ago
DNA damage can occur as a result of exposure to chemicals or ultraviolet radiation. What happens during nucleotide excision repa
katovenus [111]

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D. Enzymes open the DNA strand, remove a segment of DNA from the strand that contains the damage, and resynthesize the correct DNA sequence.

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From time to time, the DNA gets exposed to certain chemicals or radiation that damages it. However, the cell has a DNA repair mechanism in place called NUCLEOTIDE EXCISION REPAIR (NER).

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