[{"id": 102120, "created": "2016-07-12T11:17:47.948522", "project_id": 212, "task_id": 40494, "user_id": 427, "user_ip": null, "finish_time": "2016-07-12T11:17:47.948545", "timeout": null, "calibration": null, "external_uid": null, "media_url": null, "info": {"other": "", "translation": "16\r\nThe chromosomes in the semen cell of a man (23 full pairs and one surplus chromosome -X-)\r\n\r\n1) If a male sperm cell with 24 chromosomes (that is with x chromosomes) encounters a fertile ovule, two x chromosomes come together, and the result is a female embryo; we can count on the birth of a girl.\r\n\r\n2) If a male sperm cell with 23 chromosomes (that is without x chromosomes) encounters a fertile ovule, the overall sum equals only one x chromosome, and the result is a male embryo; we can therefore count on the birth of a boy.\r\n\r\nThat was now, dear readers, the quite long answer to the question \"boy or girl\" which I had chosen as a topic. If I would have taken terms like cytoplasm, centrosomes etc. from their context, you would have never been able to understand the importance of the things we are dealing with. I also believe that with the help of the sketches - I would like to greatly thank our illustrator Vannahme for their neat and clear execution - these things  will have become much clearer as if only the written word could have achieved it.\r\n\r\nSince there is still a little space available for me, I would like to add several, maybe interesting facts as a conclusion. \r\nThe x chromosome is not only the bearer of the sex, as we have seen, but also especially passes on congenital afflictions, for example the red-green colour blindness.A red-green colour blind father will pass on his x chromosome and thus his red-green colour blindness to all his daugthers. However, not to his sons, for they have only one x chromosome (deriving from the mother). If the mother is homozygously healthy, the red-green colour blindness is extinguished in all male offspring. The daughters of a red-green colour blind father have inherited in his x chromosome the red-green colour blindness, however, it remains recessive, i.e. it is a hidden hereditary disease (hidden because of the healthy chromosome from the mother), which poses a disposition but will not break out in the respective daugther. However, when such a daugther marries, she will have an equal chance of passing on to her sons a healthy or bad chromosome; thus, half of her sons is again red-green colour blind. But the daughters from this second generation inherit, in any case, from their father a healthy disposition, from their mother a \"healthy\" and a \"sick\" half. And to outline also the last possibility: if such a woman from the second generation with a hidden disposition marries a red-green colour blind man, all daughters will inherit from their father the disposition for red-green colour blindness. Half of them, which inherits the healthy x chromosome from the mother, have a recessive hereditary disposition without being red-green colour blind themselves. The other half of them, where the marred x chromosome from the mother is coupled with the marred x chromosome from the father, will be red-green colour blind. For the sons of this marriage, the father is of no matter; one half each will be red-green colour blind respectively healthy."}}, {"id": 106628, "created": "2016-09-19T06:50:00.746576", "project_id": 212, "task_id": 40494, "user_id": 1405, "user_ip": null, "finish_time": "2016-09-19T06:50:00.746601", "timeout": null, "calibration": null, "external_uid": null, "media_url": null, "info": {"other": "", "translation": ""}}]