Chandigarh: The Punjab and Haryana high court has made it clear that merely because the potency test of an accused was not ...

Research continues to highlight threats to human health with widespread chlorpyrifos use that is not assessed in current ...

It is clearly possible for men to reproduce well into old age. The metaphorical “biological clock” is only ever invoked for ...

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In an advance for treating male infertility, researchers transplanted a patient with his own sperm-forming stem cells that ...

目前，研究精子代谢面临诸多挑战。一方面，多数研究采用的整体检测方法，如磁共振波谱和质谱技术，只能提供所有代谢区域的平均信息，无法展现代谢物水平在精子内的时空动态变化和分布情况。另一方面，使用外源性标记进行代谢成像时，会出现非特异性标记、干扰天然代谢过程以及细胞毒性等问题。而且，精子在游动时，鞭毛快速摆动会产生运动模糊，使得捕捉其代谢区域的图像变得异常困难，因此大多数研究在成像前会先固定精子。可固定 ...

Check the CBSE Class 12 Biology Answer Key 2025 with detailed solutions. Download the PDF for all sets, review correct ...

Are you looking for a quick and effective way to revise for the CBSE Class 12 Biology Board Exam on March 25, 2025? With just ...

IT has been previously shown that spermatozoa of the rat and rabbit require to undergo some form of physiological preparation within the female reproductive tract before they are capable of ...

Semen, also known as seminal fluid, is the fluid secreted from the penis during ejaculation. The fluids are populated with spermatozoa (sperm cells) that can fertilize an egg. When viewed under the ...

One halcyon spring day in 1903, the 69-year-old anatomist and naturalist Dr. James Bell Pettigrew sat at the top of a sloping street on the outskirts of ...