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12 March, 09:24

1. In this experiment, the reporter geneA. Tells the experimenter exactly how much of the native protein was producedB. Changes the color of the flies' eyesC. Must be from the same type of organism as the organism into which it is being transferredD. Is designed to be easily detected and reflect the activity of the native gene2. After successfully incorporating into the genome of a fly, the construct DNA willA. Change the functions of the native pergeneB. Cause the eyes to be whiteC. Reflect transcriptional activity without interfering with functionsD. Alter the biological clock3. Both fireflies and per-Luc transgenic Drosophila

A. Can be seen glowing outdoors at dusk

B. Produce the enzyme luciferase

C. Use their glow to attract mates

D. Are experimentally produced

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  1. 12 March, 09:33
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    The correct answers are:

    Question 1. Option D. "Is designed to be easily detected and reflect the activity of the native gene".

    Question 2. Option C. "Reflect transcriptional activity without interfering with functions".

    Question 3. Option B. "Produce the enzyme luciferase".

    Explanation:

    Reporter genes are fragments of DNA that encode for a protein that scientist use to study regulatory sequences. Reporter genes are designed to be easily detected and reflect the activity of the native gene. For instance, the translation of the reporter gene luciferase is easily detected because it encodes for a protein that produces bioluminescence. Reporter genes reflect the transcriptional activity of the regulatory sequences that are the subject of the study without interfering with the normal functions of the cell. In this experiment, both fireflies and per-Luc transgenic Drosophila produce the enzyme luciferase, because luciferase is naturally synthesized by fireflies and per-Luc transgenic Drosophila has been modified to produce luciferase as well.
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