Biological Data Analysis: Homework 10

Due Tuesday, Nov. 18



You must type this and all other homework assignments. Do not e-mail the assignment to me; turn it in early (at 322 Wolf) for a foreseeable absence, or turn it in late after an unexpected absence from class.

1. McDonald (1989) collected the amphipod crustacean Platorchestia platensis on a beach near Stony Brook, Long Island, in April, 1987, counted the number of eggs each female was carrying, freeze-dried them, weighed them, then used protein electrophoresis to determine the genotype at the locus for mannose-6-phosphate isomerase (Mpi). The data consist of the identification number of the individual, the weight (in mg), the number of eggs, then the genotype. The biological question is whether the Mpi genotypes differ in size-adjusted fecundity. Analyze with ancova, using SAS. You must show your entire SAS program and the SAS output. You only need to show the log file if it doesn't work.

Amphipod crustacean, Platorchestia platensis. Photo from Tokyo Bay Ecosystem Research Center.

1301      5.42      29      fs
1302      5.38      29      ss
1303      7.36      23      ss
1304      4.47      19      fs
1305      5.75      23      ff
1306      7.27      25      fs
1307      6.64      13      fs
1308      4.67      22      ff
1309      5.55      24      ff
1310      6.13      22      ss
1311      8.94      25      fs
1312      5.85      22      ff
1313      4.15      16      ff
1314      9.91      27      fs
1315      8.57      23      fs
1316      4.75      20      ss
1317      6.89      17      fs
1318      6.64      21      fs
1319      7.12      20      fs
1320      5.92      19      ff
1321      7.06      27      ff
1322      7.48      33      fs
1323      6.14      23      fs
1324      5.85      26      fs
1325      6.69      21      fs
1326      8.10      25      ss
1327      4.97      25      ff
1328      4.15      23      fs
1329      8.62      25      ss
1330      6.30      17      ss
1331      6.68      26      fs
1332      4.46      22      ff
1333      7.44      24      ss
1334      5.38      28      ff
1335      4.64      15      fs
1336      7.93      21      fs
1337      4.18      20      ff
1338      5.69      21      ff
1339      7.04      25      fs
1340      6.41      16      fs
1341      3.70      18      fs
1342      7.26      20      ss
1343      7.17      27      ss
1344      4.78      27      fs
1345      8.24      26      fs
1346      4.68      24      fs
1347      5.25      16      ff
1348      4.64      24      ff
1349      7.78      24      ss
1350      6.23      21      ss
1351      3.96      21      fs
1352      5.42      22      ss
1353      4.86      13      ff
1354      7.87      22      ss
1355      4.56      20      ff
1356      6.36      19      fs
1357      5.25      23      ss
1358      4.38      22      fs
1359      4.58      22      fs
1360      5.74      18      fs
1361      7.37      35      ss
1362      6.14      23      fs
1363      7.25      22      fs
1364      5.21      22      ff
1365      8.56      28      fs
1366      8.01      27      ss
1367      7.38      16      fs
1368      6.71      21      fs
1369      6.85      20      fs
1370      4.92      23      ss
1371     10.16      35      fs
1372      7.02      29      fs
1373      5.71      16      ff
1374      7.03      25      ss
1375      6.45      24      ss
1376      6.52      26      ff
1377      5.50      29      fs
1378      5.53      23      ff
1379      4.91      23      ff
1380      6.81      31      fs
1381      5.51      27      fs
1382      9.58      30      fs
1383      5.06      19      ss
1384      7.77      22      fs
1385      7.11      19      fs
1386      6.72      21      ss
1387      7.24      27      fs
1388      5.51      24      ff
1389      7.47      30      ff
1390      6.72      32      fs
1391      7.05      22      fs
1392      6.92      19      fs
1393      6.07      18      fs
1394      6.63      24      fs
1395      7.00      20      ss
1396      4.85      20      ff
1397      3.97      16      fs
1398      3.95      17      ff
1399      5.49      26      ff
1400      8.49      19      fs
1401      4.54      26      fs
1402      6.51      27      ff
1403      5.71      13      fs
1404      3.44      13      fs
1405      9.39      33      ss
1406      7.42      17      ff
1407      6.49      17      ss
1408      5.66      15      fs
1409      4.75      22      fs
1410      4.82      27      fs
1411      8.20      31      ff
1412      7.27      32      fs
1413      7.09      19      fs
1414      6.34      21      ss
1415      6.16      25      ss
1416      5.74      22      ss
1417      7.63      22      ff
1418      5.89      25      fs
1419      6.86      23      fs
1420      4.22      17      fs

Reference

McDonald, J.H. 1989. Selection component analysis of the Mpi locus in the amphipod Platorchestia platensis. Heredity 62: 243-249.



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This page was last revised November 15, 2013. Its URL is http://udel.edu/~mcdonald/stathw9.html