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From fertilized egg to sexually (908 words) |
 | Fertility problems in an adult can be due to damage that occurred before they were born. |
| The evolution from fertilized egg to sexually mature male is at the center of the department's activities. |
| It is the time when a girl develops egg cells and when the boy's immature germ cells are developing. |
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Ovum - Wikipedia, the free encyclopedia (353 words) |
| An ovum (loosely, egg or egg cell) is a female sex cell or gamete. |
| The egg cell's cytoplasm and mitochondria (and chloroplasts in plants) are the sole means of the egg being able to reproduce by mitosis and eventually form a blastocyst after fertilisation, and the sperm are often too small to contribute anything physical except DNA and its own mitochondria gets destroyed by the egg. |
| In the viviparous animals (which include humans and all other placental mammals), the ovum is fertilized inside the female body, and the embryo then develops inside the uterus until it is born. |
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