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Azoospermia factor

Index Azoospermia factor

Azoospermia factor (AZF) refers to one of several proteins or their genes, which are coded from the AZF region on the human male Y chromosome. [1]

9 relations: Azoospermia, Centromere, Euchromatin, Male infertility, Meiosis, Spermatogenesis, Testicle, USP9Y, Y chromosome.


Azoospermia is the medical condition of a man whose semen contains no sperm.

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The centromere is the specialized DNA sequence of a chromosome that links a pair of sister chromatids (a dyad).

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Euchromatin is a lightly packed form of chromatin (DNA, RNA, and protein) that is enriched in genes, and is often (but not always) under active transcription.

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Male infertility

Male infertility refers to a male's inability to cause pregnancy in a fertile female.

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Meiosis (from Greek μείωσις, meiosis, which means lessening) is a specialized type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.

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Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis.

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The testicle or testis is the male reproductive gland in all animals, including humans.

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Ubiquitin specific peptidase 9, Y-linked (fat facets-like, Drosophila), also known as USP9Y, is an enzyme which in humans is encoded by the USP9Y gene.

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Y chromosome

The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals.

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Redirects here:

AZF region, AZF1, AZF2, AZFc, Azoospermia Factor, Azoospermia factor locus, Gr/gr, Gr/gr deletion.


[1] https://en.wikipedia.org/wiki/Azoospermia_factor

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