What was the result when Morgan mated fruit flies with the genotypes XrXr and XrY?

What was the result when Morgan mated fruit flies with the genotypes XrXr and XrY?

if Morgan crossed XrXr and XrY, a white-eyed female and a white flied male, it will produce 2 XrXr(white-eyed female fly) and 2 XrY(white-eyed male fly).

What was the result when Morgan mated a white eyed male fruit fly with a red-eyed female fruit fly?

When he mated a white-eyed male fly with a red-eyed female fly, all the F1 offspring had red eyes. This result suggested that the allele for red eyes was dominant. When Morgan bred those F1 offspring with each other, he got the classical 3 : 1 phenotypic ratio of red-eyed to white-eyed flies in the F2 generation.

How did Thomas Morgan produce white eyed female fruit flies?

In one mating, Morgan took a red-eyed male and mated it with a white-eyed female. He predicted and observed that half of the flies would be red-eyed females and the other half would be white-eyed males.

What was significant from the fruit fly experimentation?

He was the first to discover sex-linkage and genetic recombination, which placed the small fly in the forefront of genetic research. Due to it’s small size, ease of culture and short generation time, geneticists have been using Drosophila ever since.

What surprising results did Thomas Hunt Morgan discover in the f2 generation when he crossed red-eyed female fruit flies with white eyed male fruit flies quizlet?

When Thomas Hunt Morgan mated a white-eyed male fly with a red-eyed female, he came to the startling conclusion that the trait for eye color was located on the chromosome that determines sex.

On which chromosome was the mutation that caused the white eye phenotype in Thomas Hunt Morgan’s Drosophila located?

In January 1910, a century ago, Thomas Hunt Morgan discovered his first Drosophila mutant, a white-eyed male (Morgan 1910). Morgan named the mutant gene white and soon demonstrated that it resided on the X chromosome. This was the first localization of a specific gene to a particular chromosome.

What is the significance of Morgan’s observation?

By painstakingly examining thousands upon thousands of flies with a microscope and a magnifying glass, Morgan and his colleagues confirmed the chromosomal theory of inheritance: that genes are located on chromosomes like beads on a string, and that some genes are linked (meaning they are on the same chromosome and …

What does the unusual result Thomas Morgan Hunt observed from F2 generation suggest?

When Thomas Hunt Morgan mated a white-eyed male fly with a red-eyed female, he came to the startling conclusion that the trait for eye color was located on the chromosome that determines sex. F2 generation: The offspring showed a ratio of three red-eyed flies to one white- eyed fly.