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If a female fruit fly heterozygous for red eyes XRXr crossed with a white eyed male XrY what percent of their offspring would have white eyes?
50% of the offspring would have white eyes. This is because all females from the cross would inherit the Xr from the male, resulting in red-eyed females, while males would inherit the Xr from the female fruit fly, resulting in white-eyed males.
If a heterozygous red eyed female fruit fly mates with a heterozygous red eyed male fruit fly the ratio of the resulting offspring that will have red eyes is while the remaining r?
The resulting offspring from this cross will have a phenotypic ratio of 3 red-eyed : 1 white-eyed. This is based on the typical 3:1 phenotypic ratio observed when two heterozygous individuals are crossed for a single gene trait like eye color in fruit flies.
How many genes are there in a fruit fly?
Each cell of a fruit fly contains 13,601 genes.
How many chromosomes would be found in a male fruit fly regular body cell?
there is 4 pairs of chromosomes in each cell for a fly!
If you had a red eyed fruit fly but didnt know whether or not it was a carrier for white eyes how could you find out?
In fruit flies white eyes are an X-linked trait (found on the X sex chromosome). Like humans, the females have two X chromosomes and the males have one X chromosome and one Y chromosome.Determine the sex of the fly:If the fly in question is a male then it cannot be a carrier. If it is a female then it could be a carrier since white eyes are a recessive trait. (Males are said to be hemizygous since they do not have matching sex chromosomes.)Preform a cross test:To see if a female is a carrier for white eyes (heterozygous for the trait) mate her with a red-eyed male. If she is heterozygous, then all the female offspring should have red eyes (half are carriers for white eyes). Half of the male offspring should have white eyes and the other half should have red eyes. The males get one X chromosome from the mother and one Y chromosome from the father so any expression of red or white eye color comes from the mother; the presence of white-eyed male offspring proves that the mother is a carrier (heterozygous).If she is homozygous for red eyes then 100% her offspring will have red-eyes in the test cross.
How many eyes do flies have?
Flies have 5 eyes! Two of these being compound eyes consisting of many lenses. The other three (ocelli) are single lens eyes located in a triangle form above and in between the two compound eyes, on the top of the head.
What was the result when Morgan mated a white eyed fruit fly with a red eyed female fruit fly?
When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. In the next generation, because females would have the X chromosome for white eyes, about half the offspring would have white eyes. The offspring with white eyes were all male, meaning he discovered eye color in fruit flies showed a sex-linked trait. The result of this was a generation of red eyed and white eyed individuals. If the red eyed female was heterozygous, this is possible.
What was the result when Morgan mated a white fruit fly with a red eyed female fruit fly?
When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. In the next generation, because females would have the X chromosome for white eyes, about half the offspring would have white eyes. The offspring with white eyes were all male, meaning he discovered eye color in fruit flies showed a sex-linked trait. The result of this was a generation of red eyed and white eyed individuals. If the red eyed female was heterozygous, this is possible.
What was the result when Morgan mated a white eyed male fruit fly with a red-eyed female fruit fly?
When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. In the next generation, because females would have the X chromosome for white eyes, about half the offspring would have white eyes. The offspring with white eyes were all male, meaning he discovered eye color in fruit flies showed a sex-linked trait. The result of this was a generation of red eyed and white eyed individuals. If the red eyed female was heterozygous, this is possible.
What was the result when Morgan mated a white eyed male fruit fly with red eyed female fruit fly?
When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. In the next generation, because females would have the X chromosome for white eyes, about half the offspring would have white eyes. The offspring with white eyes were all male, meaning he discovered eye color in fruit flies showed a sex-linked trait. The result of this was a generation of red eyed and white eyed individuals. If the red eyed female was heterozygous, this is possible.
What was the result when Morgan mated a white-eyed male fruit fly with a red eyed female fruit fly?
When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. In the next generation, because females would have the X chromosome for white eyes, about half the offspring would have white eyes. The offspring with white eyes were all male, meaning he discovered eye color in fruit flies showed a sex-linked trait. The result of this was a generation of red eyed and white eyed individuals. If the red eyed female was heterozygous, this is possible.
What are some characteristics of the Drosophila Melanogaster?
Drosophila melanogaster is a small fly that is often found near fruit. They are often know as fruit or vinegar flies. The flies have red eyes and are a yellowish color.
What is the genotype of a red-eyed male fruit fly?
Red eyes is a dominant sex-linked gene in the fruit fly. Males with red eyes have the genotype XRY, where R is for the red gene.
What was the result when Morgan mated white-eyed fruit fly with a red-eye female fruit fly?
All the offspring had red eyes. The white eye trait is recessive, so it did not appear in the offspring.
What was the result when Morgan mated a white eyed male fruit fly with a red eyed female fly?
When Morgan mated a white-eyed male fruit fly with a red-eyed female fruit fly, the first generation offspring all had red eyes. In the next generation, because females would have the X chromosome for white eyes, about half the offspring would have white eyes. The offspring with white eyes were all male, meaning he discovered eye color in fruit flies showed a sex-linked trait. The result of this was a generation of red eyed and white eyed individuals. If the red eyed female was heterozygous, this is possible.
Where is the gene for fruit flies eye color?
The gene for fruit fly eye color is located on the X chromosome. It codes for a protein called "eye color," which determines the pigmentation in the eyes of the fruit fly. Mutations in this gene can lead to different eye colors in fruit flies.
What offspring would result from a cross of a homozygous red-eyed female fruit fly and a vermilion-eyed male fruit fly?
All offspring would have red eyes because the gene for red eyes is dominant over the gene for vermilion eyes. The offspring would all be heterozygous for eye color, inheriting one red-eyed allele from the female and one vermilion-eyed allele from the male.
