Some closely related species such as lions and tigers are able to mate and produce viable progeny, yet these hybrid individuals are reproductively sterile. Why is this?

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Accepted Answer

∻Answer∻ ⚹ Hybrid sterility in closely related species such as lions and tigers is due to genetic incompatibilities that prevent the production of viable gametes. ⚹ ∻Solution∻ ‖ a ⋮ Chromosomal differences: Lions and tigers have different numbers of chromosomes (lions have 38, tigers have 38), which can lead to problems during meiosis, the process of forming gametes. ‖‖ b ⋮ Gene incompatibility: Even if the chromosomes can pair up, the genes from the two species may not work well together, leading to dysfunctional gametes. ‖‖ c ⋮ Hybrid vigor: While the hybrid may be viable and healthy, the genetic differences often result in sterility because the hybrid's reproductive cells cannot properly undergo meiosis. ‖ ∻Key Concept∻ ⚹ Genetic incompatibility ⚹ ∻Explanation∻ ⚹ The genetic differences between the two species result in issues during meiosis, leading to the production of non-functional gametes, which causes sterility in the hybrid individuals. ⚹◊What genetic mechanisms lead to the reproductive sterility of hybrid offspring between closely related species like lions and tigers?⍭ Generate me a similar question◊

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