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  2. Hardy–Weinberg principle - Wikipedia

    en.wikipedia.org/wiki/Hardy–Weinberg_principle

    Let us assume an estimated babies are born with cystic fibrosis, this is about the frequency of homozygous individuals observed in Northern European populations. We can use the Hardy–Weinberg equations to estimate the carrier frequency, the frequency of heterozygous individuals, 2 p q {\displaystyle \textstyle 2pq} .

  3. Heterozygote advantage - Wikipedia

    en.wikipedia.org/wiki/Heterozygote_advantage

    Multiple studies have shown, in double-blind experiments, females prefer the scent of males who are heterozygous at all three MHC loci. [ 21 ] [ 22 ] The reasons proposed for these findings are speculative; however, it has been argued that heterozygosity at MHC loci results in more alleles to fight against a wider variety of diseases, possibly ...

  4. Reproductive isolation - Wikipedia

    en.wikipedia.org/wiki/Reproductive_isolation

    It has been suggested that Haldane's rule simply reflects the fact that the male sex is more sensitive than the female when the sex-determining genes are included in a hybrid genome. But there are also organisms in which the heterozygous sex is the female: birds and butterflies and the law is followed in these organisms. Therefore, it is not a ...

  5. Sex-determination system - Wikipedia

    en.wikipedia.org/wiki/Sex-determination_system

    Fertilized eggs develop into diploid individuals which, due to high variability in the csd locus, are generally heterozygous females. In rare instances diploid individuals may be homozygous, these develop into sterile males.

  6. Zygosity - Wikipedia

    en.wikipedia.org/wiki/Zygosity

    The words homozygous, heterozygous, and hemizygous are used to describe the genotype of a diploid organism at a single locus on the DNA. Homozygous describes a genotype consisting of two identical alleles at a given locus, heterozygous describes a genotype consisting of two different alleles at a locus, hemizygous describes a genotype consisting of only a single copy of a particular gene in an ...

  7. Rare Baby Chick Born With 4 Legs Draws Crowds At Iowa ... - AOL

    www.aol.com/rare-baby-chick-born-4-162000583.html

    The chick was born with four legs instead of tow, a genetic condition known as polymelia. Polymelia is when an embryo develops extra limbs due to genetic mutations or developmental anomalies.

  8. XY sex-determination system - Wikipedia

    en.wikipedia.org/wiki/XY_sex-determination_system

    The idea is instead of having a simplistic mechanism by which you have pro-male genes going all the way to make a male, in fact there is a solid balance between pro-male genes and anti-male genes and if there is a little too much of anti-male genes, there may be a female born and if there is a little too much of pro-male genes then there will ...

  9. 4D Molecular Shares Updated Data From Fabry Disease Trial

    www.aol.com/news/4d-molecular-shares-updated...

    4D Molecular Therapeutics Inc (NASDAQ: FDMT) has posted updated interim data from the Phase 1/2 trial of 4D-310 in Fabry disease at the 18th Annual WORLDSymposium. Following 4D-310 infusion, mean ...

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