Minitest_3_KEY - assorting. However, one could imagine that...

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Minitest 3 KEY 1. A. ‘Solid black mouse’ and ‘’Genomic DNA library from black tabby cat’. B. The solid black mouse is now agouti. 2. A. B. Line A; add a dominant marker on chromosome 3 in order to detect a hop. Co-segregation of the marker and normal wings (P[vg+]) would indicate that the P-element had left its original site on the maternal chr 3 homolog. Alternatively: Line B; on chromosome 3, add a dominant marker that is tightly linked to the P[vg+] cassette. Co-segration of the dominant marker and normal wings would indicate ‘no hop’, independent assortment of the dominant marker and the P-element would indicate a hop. 3. A. PD, NPD and T (top to bottom). B. “YES” ADE and FUN1 are linked “NO” ADE and FUN2 are independently assorting “NO” for ADE and FUN3 is the most straightforward answer since the genes are independently
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Unformatted text preview: assorting. However, one could imagine that they are on the same chromosome but really far away from each other, assorting independently, and then one could say “CAN’T TELL”. C. ADE and FUN1 are 5 cM apart. There is one tetratype tetrad (T), it contains 2 recombinant and 2 parental spores. The other 9 tetrads are parental ditype (PD), so they contain only parental spores. 2 recombinant / 40 total spores = 0.05 x 100 = 5 cM D, E, F. For the metaphase drawings below, there are several ways to draw them, but the outcomes must give rise to a T, T and NPD tetrad respectively and take into account the information about linkage/IA, and centromere linkage that you got from the tetrad pattern in the data table. D ADE fun1 / ade FUN1 E ADE fun2 / ade FUN2 F ADE fun3 / ade FUN3...
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This test prep was uploaded on 04/15/2008 for the course GENOME 371 taught by Professor Unsure during the Summer '03 term at University of Washington.

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