Related Experiment Video

Updated: Aug 17, 2026

Measuring and Altering Mating Drive in Male Drosophila melanogaster
07:02

Measuring and Altering Mating Drive in Male Drosophila melanogaster

Published on: February 15, 2017

[Inheritance features of mating behavior components in Drosophila melanogaster and their significance for fitness]

N E Volkova, L I Vorob'eva

    Genetika
    |June 28, 2005
    PubMed

    More Related Videos

    Assessing Differences in Sperm Competitive Ability in Drosophila09:34

    Assessing Differences in Sperm Competitive Ability in Drosophila

    Published on: August 22, 2013

    A Method to Test the Effect of Environmental Cues on Mating Behavior in Drosophila melanogaster08:13

    A Method to Test the Effect of Environmental Cues on Mating Behavior in Drosophila melanogaster

    Published on: July 17, 2017

    Related Concept Videos

    Mate Choice01:20

    Mate Choice

    Mate choice—the decision about whom to mate with—is a type of natural selection, since animals must reproduce to pass down their genes. Mate choice is also called intersexual selection because the behavior occurs between the sexes.
    Inclusive Fitness00:57

    Inclusive Fitness

    Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
    Natural Selection and Mating Preferences01:06

    Natural Selection and Mating Preferences

    The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
    Females, due to their biological roles in conception, pregnancy, and nursing, inherently...
    Background and Environment Affect Phenotype02:27

    Background and Environment Affect Phenotype

    Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
    An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
    The Ratio of X Chromosome to Autosomes02:45

    The Ratio of X Chromosome to Autosomes

    In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
    Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...
    Chromosomal Theory of Inheritance01:39

    Chromosomal Theory of Inheritance

    In 1866, Gregor Mendel published the results of his pea plant breeding experiments, providing evidence for predictable patterns in the inheritance of physical characteristics. The significance of his findings was not immediately recognized. In fact, the existence of genes was unknown at the time. Mendel referred to hereditary units as “factors.”