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Alex73 [517]
3 years ago
8

Which statement best describes changes to the geosphere from the interaction with another of Earth's spheres?

Biology
1 answer:
Whitepunk [10]3 years ago
5 0

Answer:

D. Animals burrow tunnels into the ground

Explanation:

In this scenario we have interaction between the biosphere and the geosphere. The biosphere is represented by all of the living organisms on the planet Earth. The geosphere is represented by all of the crust on the planet Earth. The animals are living organisms, thus they are part of the biosphere, and by doing an activity in the ground, in this case burrowing tunnels, they interact with the geosphere, so we have an interaction between the biosphere and the geosphere.

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Answer:

2% of the progeny will be double crossovers for the trihybrid test cross

Explanation:  

By knowing the positions of genes, we can estimate the distances in MU between them per region.

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----A-------10MU--------B-------------20MU-------------C---

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We can estimate the recombination frequencies by dividing each distance by 100.

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Now that we know the recombination frequencies in each region, we can calculate the expected double recombinant frequency, EDRF, like this:

EDRF = recombination frequency in region I x recombination frequency in region II.

EDRF = 0.10 x 0.20 = 0.02        

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