Multiple Choice
Once an organism's genome sequence has been determined, how do scientists generally start identifying all the genes within the genome?
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19. Genomics
Genomes
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Alu elements __________.
A
are found only in the human genome
B
encode their own transposase
C
make up nearly 50% of the human genome
D
are present in all mammals
E
are derived from or related to transposable elements
Verified step by step guidance1
Understand that Alu elements are a type of transposable element, which are sequences of DNA that can change their position within the genome.
Recognize that Alu elements are specifically found in primates, including humans, but not exclusively in all mammals.
Note that Alu elements do not encode their own transposase; they rely on other elements for transposition.
Realize that Alu elements make up approximately 10% of the human genome, not nearly 50%.
Conclude that Alu elements are derived from or related to transposable elements, which is the correct answer.
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