In Drosophila, the two genes w and sn are X-linked and located at 20 m. u. apart. A female fly of the genotype w sn / w sn is crossed to a male from a wild type line. What percent of the male progeny will be of the w sn phenotype

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above