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RSB [31]
3 years ago
13

In an experiment, a scientist makes a radioactively labeled probe using viral DNA. She then discovers that the probe hybridizes

to a small segment of DNA isolated from human tissue. What can she conclude from her results?
Biology
2 answers:
JulsSmile [24]3 years ago
7 0

<span>Out of the following given choices;</span>

A. The Geiger counter being used to detect radiation is broken.

B. Two or more samples we accidentally swapped, causing confusion.

C. A virus contaminated the reaction in which the probe was made.

D. The human genome might contain at least one viral gene.

 

The answer is D. This means that the viral DNA inserted itself in the human tissue DNA aand became a prophage. A prophage is a latent form of viral infection where the inserted viral DNA has no interference with the host cell biochemical processes. The prophage will be present in the daughter cells of the host cells.

Julli [10]3 years ago
7 0

Answer: The human genome might contain at least one viral gene.

Explanation:

Trust me G

APEX

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Cantlon, her research assistant Allison Barnard, postdoctoral fellow Kelly Hughes, and other colleagues at the University of Rochester and the Seneca Park Zoo in Rochester, N.Y., reported their findings online May 2 in the open-access journal Frontiers in Comparative Psychology. The study tracked eight olive baboons, ages 4 to 14, in 54 separate trials of guess-which-cup-has-the-most-treats. Researchers placed one to eight peanuts into each of two cups, varying the numbers in each container. The baboons received all the peanuts in the cup they chose, whether it was the cup with the most goodies or not. The baboons guessed the larger quantity roughly 75 percent of the time on easy pairs when the relative difference between the quantities was large, for example two versus seven. But when the ratios were more difficult to discriminate, say six versus seven, their accuracy fell to 55 percent.

That pattern, argue the authors, helps to resolve a standing question about how animals understand quantity. Scientists have speculated that animals may use two different systems for evaluating numbers: one based on keeping track of discrete objects -- a skill known to be limited to about three items at a time -- and a second approach based on comparing the approximate differences between counts.

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