Answer:
[tex]\frac{1}{8}[/tex]
Explanation:
If flies that are heterozygous for all three traits are crossed; e.g HtHtHt crosses with HtHtHt. The proportion of the offspring that would be expected to be heterozygous for all three traits will be: 1/8 because 50% (0.5) of their offspring will be heterozygous for just one trait. Therefore for three traits; we have (0.5)³= 0.125
0.125 is equivalent to [tex]\frac{1}{8}[/tex]
From the table, the area of the asterisk region illustrate the traits that are heterozygous in the offspring.
= [tex]\frac{8}{64}[/tex]
= [tex]\frac{1}{8}[/tex]