True-breeding red-eyed Drosophila flies with plain thoraxes were crossred with pink-eyed flies with striped thoraxes
`{:("Red eye",xx,"Pink eye"),("Plain thorx",,"striped throrax"):}`
The `F_(1)` flies were then test crossed against the double recessive
The following `F_(2)` generation resulted from the cross :
`{:(80,16,12,92),("Red eye","Red eye","Pink eye","Pink eye"),(underset("thorax")("Plain"),underset("thorax")("Striped"),underset("thorax")("Plain"),underset("thorax")("Striped")):}`
What percentage number of recombinats resulted from the test cross ?

Options

A. 12
B. 14
C. 16
D. 28

Answer

B

Explanation

Recombinants obtained from the cross are 16 red eye striped thorax flies and 12 pink eye plain thorax flies.
Total number of flies `=200`
Total number of recombinants `=28`
Therefore, percentage of recombinants `= (28)/(200) xx 100 = 14 %`