Sex determination in organisms involves the differentiation of male and female sexes based on gamete production, reproductive structures, and secondary sexual characteristics. This process can vary across different species, with mechanisms such as sex chromosomes, genic balance, haploidy, and single

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Platyhelminthes, also known as flatworms, exhibit a dorsoventrally flattened body with bilateral symmetry. They can be endoparasites or free-living organisms, with some displaying unique adaptations for attachment and survival. These acoelomate organisms lack a complete digestive system, excreting w

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The concept of sex differentiation in organisms, the role of gamete size, hermaphroditism vs. dioecious species, and the chromosome theory of inheritance are explored. Discover how the presence of specific chromosomes determines sex in insects and how individual genes on sex chromosomes impact sexua

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Reproductive disorders in animals can lead to infertility or sterility, affecting their ability to reproduce. Causes include congenital, hormonal, nutritional, infectious, and management factors. Congenital or hereditary causes may involve conditions like hermaphroditism, freemartin syndrome, and ov

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