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  Indian J Med Microbiol
 

Figure 3: Part A is Y chromosome structure, PAR1 and PAR2 are shown in light gray, and the autosomal domains in specific regions of Y are shown in dark gray. The black circular areas represent centromeres. AZFc amplicon is divided into five color sequence families: yellow (y), blue (b), green (g), red (r), and gray (g). The direction of the arrow indicates the polarity of the amplicon. Part B describes two recombination situations in which AZFb region is missing. Part C describes the deletion mechanism of four different subtypes in AZFc region. PAR: pseudoautosomal region; MSY: male-specific region; AZF: azoospermia factor; P1–5: palindrome sequence 1–5.

Figure 3: Part A is Y chromosome structure, PAR1 and PAR2 are shown in light gray, and the autosomal domains in specific regions of Y are shown in dark gray. The black circular areas represent centromeres. AZFc amplicon is divided into five color sequence families: yellow (y), blue (b), green (g), red (r), and gray (g). The direction of the arrow indicates the polarity of the amplicon. Part B describes two recombination situations in which AZFb region is missing. Part C describes the deletion mechanism of four different subtypes in AZFc region. PAR: pseudoautosomal region; MSY: male-specific region; AZF: azoospermia factor; P1–5: palindrome sequence 1–5.