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  2. Drosophila melanogaster - Wikipedia

    en.wikipedia.org/wiki/Drosophila_melanogaster

    The appearance and sex of fruit flies is determined only by genetic information. [16] Female fruit flies are substantially larger than male fruit flies, with females having bodies that are up to 30% larger than an adult male. [17] [18] Wild type fruit flies are yellow-brown, with brick-red eyes and transverse black rings across the abdomen.

  3. Drosophila - Wikipedia

    en.wikipedia.org/wiki/Drosophila

    Drosophila is a prime candidate for genetic research because the relationship between human and fruit fly genes is very close; disease-producing genes in humans can be linked to those in Drosophila. [52] The fly has approximately 15,500 genes on its four chromosomes, whereas humans have about 22,000 genes among their 23 chromosomes. [53]

  4. fruitless (gene) - Wikipedia

    en.wikipedia.org/wiki/Fruitless_(gene)

    Male flies with mutations in the fruitless gene display altered sexual behavior. Fruitfly courtship, which involves a complex male-initiated ritual, may be disrupted in many ways by mutated fru alleles; fru is necessary for every step in the ritual. Some alleles prevent courting entirely, while others disrupt individual components.

  5. Metafemale - Wikipedia

    en.wikipedia.org/wiki/Metafemale

    A metafemale (or superfemale) is a low viability Drosophila fruit fly with a female phenotype in which the ratio of X chromosomes to sets of autosomes (A) exceeds 1.0. [1] For example: a fly with one X chromosome and two sets of autosomes is a normal male, a fly with two X chromosomes and two sets of autosomes is a normal female, and a fly with three X chromosomes and two sets of autosomes (or ...

  6. Bateman's principle - Wikipedia

    en.wikipedia.org/wiki/Bateman's_principle

    Bateman attributed the origin of the unequal investment to the differences in the production of gametes: sperm are cheaper than eggs. A single male can easily fertilize all of a female's eggs; she will not produce more offspring by mating with more than one male. A male is capable of fathering more offspring if he mates with several females.

  7. Drosophila subobscura - Wikipedia

    en.wikipedia.org/wiki/Drosophila_subobscura

    When a female appears, the male taps her with his own front legs. The male then stands in front and directly faces the female to stick out his proboscis. The male and female then start to “dance”, as the female rapidly sidesteps, while the male tries to keep himself directly facing the female. During the dance, the male's wings are usually ...

  8. Invasive fruit fly species puts parts of Orange County under ...

    www.aol.com/news/invasive-fruit-fly-species-puts...

    An adult fruit fly is a strong flier that's been known to travel 30 miles in search of food and sites to lay eggs, giving it the ability to infest new areas quickly, according to the food and ...

  9. Drosophila virilis - Wikipedia

    en.wikipedia.org/wiki/Drosophila_virilis

    A D. virilis male (top) and female (bottom), showing the bright red gonads of the male. Drosophila virilis is a species of fruit fly with a worldwide distribution (probably due to human movements [1]), and was one of 12 fruit fly genomes sequenced for a large comparative study. [2] The males have bright red gonads that can be seen through the ...