Genetics

Genetics

Your unknown stock has the following mutant phenotypes:
bulging eye shape
vicious bristles
pale eye color
--------------------------------------------------------------------------------------Cross 1: bulging vicious pale males X wild type females
phenotype males females
bulging vicious 0 474
vicious 485 0
--------------------------------------------------------------------------------------Cross 2: bulging vicious pale females X wild type males
phenotype males females
bulging vicious 478 444
--------------------------------------------------------------------------------------Cross 3: bulging vicious pale males X Cy/Pm; D/Sb females
phenotype males females
Cy D bulging vicious 0 115
Cy Sb bulging vicious 0 115
Pm D bulging vicious 0 114
Pm Sb bulging vicious 0 113
Cy D vicious 115 0
Cy Sb vicious 111 0
Pm D vicious 114 0
Pm Sb vicious 116 0
--------------------------------------------------------------------------------------Stocks for crosses:
4 - bulging vicious pale
5 - bulging pale
6 - vicious pale
7 - pale
8 - bulging vicious
9 - wild type
The following crosses were ordered by a student, they may or may not all be useful. The
student may not have ordered the same crosses you would have ordered, and may or may not
be able to complete the assignment.
Cross 11 : F1 males X F1 females

phenotype males females
bulging vicious pale 93 98
bulging vicious orange 194 186
bulging vicious black 291 292
bulging vicious 592 595
bulging orange 94 95
bulging 285 277
vicious pale 96 90
vicious orange 184 184
vicious black 295 290
vicious 546 569
orange 92 97

wild type 295 274
Cross 61 : vicious pale males X F1 females

phenotype males females
bulging vicious pale 380 402
bulging vicious orange 399 409
bulging vicious black 404 402
bulging vicious 393 387
vicious pale 411 410
vicious orange 382 407
vicious black 387 392
vicious 407 406
Cross 71 : pale males X F1 females

phenotype males females
bulging vicious pale 244 234
bulging vicious orange 160 160
bulging vicious black 226 240
bulging vicious 160 158
bulging pale 153 152
bulging orange 239 234
bulging black 158 162
bulging 246 227
vicious pale 239 238
vicious orange 154 152
vicious black 232 238
vicious 150 156
pale 156 164
orange 236 245
black 155 154
wild type 237 243
Cross 39 : Cy D vicious males X wild type females

phenotype males females
Cy D 193 200
Cy vicious 191 208
D 205 196
vicious 205 206
28. The progeny created in cross #1 (bulging vicious pale males X wild type females) are:
a. Heterozygous
b. Homozygous recessive
c. Homozygous dominant
d. Homozygous mutant
e. Homozygous wild type

29. Which of the following genes are recessive?
a. Bulging eye shape
b. Vicious bristles
c. Pale eye color
d. Orange eye color
e. More than one of the above
30. Which of the following traits are sex linked?
a. Bulging eye shape
b. Vicious bristles
c. Pale eye color
d. Orange eye color
e. More than one of the above
31. Which of the following genes (if any) is linked to vicious bristles in the above
simulation?
a. Bulging eye shape
b. Pale eye color
c. Orange eye color
d. Black eye color
e. None of the above
32. Which of the following genes (if any) is linked to bulging eye shape in the above
simulation?
a. Vicious bristles
b. Orange eye color
c. Pale eye color
d. Black eye color
e. None of the above
33. To determine map distances in Drosophila a test cross should be performed in which the
female is homozygous.
a. True
b. False
34. How far apart are the linked genes in the above simulation?
a. Less than 5 map units apart
b. From 5 to 14.9 map units apart
c. From 15 to 24.9 map units apart
d. From 25 to 34.9 map units apart
e. Over 35 map units apart
35. Which, if any, genes are on chromosome #1
a. Bulging eye shape
b. Orange eye color
c. Pale eye color
d. Black eye color
e. It is impossible to tell, the wrong cross was done

36. Which chromosome is Vicious bristles on in the above simulation?
a. Chromosome 1
b. Chromosome 2
c. Chromosome 3
d. Chromosome 4
e. It is impossible to tell, the wrong cross was done
37. Which chromosome is Orange eye color on in the above simulation?
a. Chromosome 1
b. Chromosome 2
c. Chromosome 3
d. Chromosome 4
e. It is impossible to tell, the wrong cross was done
38. Which, if any, genes can you be sure is on chromosome #3
a. Bulging eye shape
b. Pale eye color
c. Black eye color
d. Orange eye color
e. It is impossible to tell, the wrong cross was done