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Misha Larkins [42]
3 years ago
6

How could meiosis help students

Biology
2 answers:
pickupchik [31]3 years ago
4 0

Answer:

by having students draw germ cells and gemetes containing chromosomes with labelled alleles , instructors can assess student understanding of the structure of chromosomes .

saveliy_v [14]3 years ago
3 0

Answer:

Meiosis help students by:

1. Having students draw germ cells.

2. Instructors can assess student understanding of the structure of chromosomes.

3. The relationship between germ cell genotype and gamete genotypes.

Hope it helps

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Why do calculated recombination frequencies between pairs of loci that are located far apart underestimate the true genetic dist
den301095 [7]

Answer:

B. As the distance between loci increases, some multiple crossovers go undetected such that the relationship between recombination frequency and map distance ceases to be linear.  

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>

The relationship between the actual map distance (number of crossing overs) and the recombination frequency between two loci, is not lineal. The farther apart are the two genes, the worse is the distance estimation.  

8 0
3 years ago
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