Morgan mated a white-eyed male and wild type red-eyed female. All the offspring of this cross were red-eyed so, Morgan concluded that the allele for red-eye is dominant to the allele of white-eye. So, our correct option is A all were red-eyed.
Morgan mated a white-eyed male and wild type red-eyed female. All the offspring of this cross were red-eyed so, Morgan concluded that the allele for red-eye is dominant to the allele of white-eye. So, our correct option is A all were red-eyed.
Morgan mated a white-eyed male and wild type red-eyed female. All the offspring of this cross were red-eyed so, Morgan concluded that the allele for red-eye is dominant to the allele of white-eye. So, our correct option is A all were red-eyed.
Morgan mated a white-eyed male and wild type red-eyed female. All the offspring of this cross were red-eyed so, Morgan concluded that the allele for red-eye is dominant to the allele of white-eye. So, our correct option is A all were red-eyed.
Morgan mated a white-eyed male and wild type red-eyed female. All the offspring of this cross were red-eyed so, Morgan concluded that the allele for red-eye is dominant to the allele of white-eye. So, our correct option is A all were red-eyed.
However in the second generation when Morgan mated offsprings of the first cross all the offspring who had white eyes were males, with some males having red-eyes and all females having red eyes. This showed that there was a link between the colour of the yes and sex. Driving the conclusion that the allele for the colour of eyes was on the X-chromosome, and since males only have one X-chromosomes if that was recessive or dominant the male will be white-eyed or red-eyed respectively.