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An orchidometer can measure testicular volume, which in turn is tightly associated with both sperm and hormonal parameters. [6] A physical exam of the scrotum can reveal a varicocele, but the impact of detecting and surgically correct a varicocele on sperm parameters or overall male fertility is debated. [6]
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Sterility can also be caused by selective breeding, where a selected trait is closely linked to genes involved in sex determination or fertility. For example, goats breed to be polled (hornless). This results in a high number of intersex individuals among the offspring, which are typically sterile.
Vasectomy is an elective surgical procedure that results in male sterilization, often as a means of permanent contraception.During the procedure, the male vasa deferentia are cut and tied or sealed so as to prevent sperm from entering into the urethra and thereby prevent fertilization of a female through sexual intercourse.
Klinefelter syndrome (KS), also known as 47,XXY, is a chromosome anomaly where a male has an extra X chromosome. [10] These complications commonly include infertility and small, poorly functioning testicles (if present).
Male-sterile plants can set seed and propagate. Female-sterile plants cannot develop seeds and will not propagate. Manifestation of male sterility in CMS may be controlled either entirely by cytoplasmic factors or by interactions between cytoplasmic factors and nuclear factors. Male sterility can arise spontaneously via mutations in nuclear ...
Social commentators have said that the wide-ranging consequences of male infertility necessitate the use of crisis, [13] since widespread involuntary childlessness can be viewed as a crisis. [14] Research analysis has found that amongst a sample of British newspapers in the 1990s, there was a recognizable discourse about a male fertility crisis ...
An audio conversion app (also known as an audio converter) transcodes one audio file format into another; for example, from FLAC into MP3. It may allow selection of encoding parameters for each of the output file to optimize its quality and size.