In Drosophila melanogaster white eyes w are recessive to red

In Drosophila melanogaster, white eyes (w) are recessive to red eyes (w⁺), and crossveinless wings (cv) are recessive to crossveined wings (cv+). Both genes are known to be on the X chromosome. The following crosses are performed:
P: red-eyed, crossveinless female (w⁺ cv / w⁺ cv) X white-eyed, crosseveined male (w cv⁺ / Y)
F1: All red-eyed and crossveined

A female fly from the F1 generation is crossed with a male with white eyes and crossveinless wings (w cv / Y), producing the following progeny, with equal numbers of male and female flies within each group:

F2: 357 red-eyed and crossveinless
341 white-eyed and crossveined
52 red-eyed, crossveined
45 white-eyed, crossveinless
TOTAL: 795 flies

What was the genotype of the F1 female?

Solution

The genotype of F1 female is

A. w+ cv+ / w cv

All the F1 generation are red eyed and crossveined