Question
Question: The following crosses refer to experiments using the fruit fly, Drosophila. True-breeding red-eyed ...
The following crosses refer to experiments using the fruit fly, Drosophila.
True-breeding red-eyed flies with plain thoraxes were crossed with pink-eyed flies with striped thoraxes. The F, flies were then test crossed against the double recessive as follows:
red eye × pink eye
Plain thorax striped thorax
The following F2 generation resulted from the cross.
| 80 | 16 | 12 | 92 |
|---|---|---|---|
| red eye | red eye | pink eye | pink eye |
| plain thorax | striped thorax | plain thorax | striped thorax |
What percentage number of recobinants resulted from the testcross?
A
12
B
14
C
16
D
28
Answer
14