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Sophie [7]
3 years ago
7

PLEASE HELP!!

Biology
2 answers:
Gala2k [10]3 years ago
6 0

Answer:

a

Explanation:

Karo-lina-s [1.5K]3 years ago
3 0
C because if the snake is removed from the food web the owl will have to find an alternative method of food. Meaning less food available for the owl. Although the hawk has the mouse as the next resort it has 1 less source of food.
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Answer:

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Explanation:

When calculating recombination frequencies, and hence, map distances, we might notice that these distances are not completely additive. They might vary. <em>For example, let us say that we have three genes, A, B, and C, in that order. </em>We calculated that the <em>distance between A and B equals 5.9</em> MU and that <em>B and C are 19.5 MU apart.</em> According to this, we might say that the <em>total distance between A and C is 25.4 MU (5.9 + 19.5). </em>However, after a<em> two-point calculation between A and C, the value equals 23.7 MU. </em>

The recombination frequency between these two genes located in the extremes and far apart underestimate the actual genetic distances between them because there might occur other crossing-overs that were not detected. This is <em>when calculating the distance between A and C, we probably will not detect the occurrence of a double recombinant between them, and hence, we might sub-estimate the real distance.</em>

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