Fertilised ovum

Hello! This is related to Roux' experiment - the un-fertilised frog ovum divides when pricked with a microneedle, but only when the needle is dipped in the frog's blood ...

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... into a woman's vagina will swim up the vagina to fertilise the ovum..wen the ovum is fertilised by the sperm it is called fertilisation the cells then divide via mitosis process ...

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... is arrested at metaphase II. Then it is released and becomes the mature ovum, completing meiosis only after it is fertilised. Then, 20 pages later, they tell me that the ovum has no centrosome, and that it ...

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... since the cell splits into two. But this is only correct for when the fertilised ovum (pre-embryo) splits into two forming two identical pre-embryos. In the case where the ...

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