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An acute oral administration of Sildenafil in asthenozoospermic patients improves sperm motility after density gradient centrifugation. [PDF]

open access: yesJBRA Assist Reprod, 2021
Martínez FAM   +5 more
europepmc   +1 more source

Cytoplasmic DNA in the unfertilized sea urchin egg: Physical properties of circular mitochondrial DNA and the occurrence of catenated forms [PDF]

open access: yes, 1968
The mitochondrial DNA in the unfertilized egg of the sea urchin Lytechinus pictus is present in an amount approximately seven times that of the haploid nuclear DNA.(1) The mitochondrial DNA has a higher buoyant density than the nuclear DNA and consists ...
Blair, Donald G.   +3 more
core  

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