Bacteriophages are viruses that infect bacteria, playing a significant role in the study of molecular biology and genetics.

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Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of …

2023年9月28日 · Teachers are busy trying to keep up with the ever-growing number of educational tech tools that promise to simplify their lives. It can be quite challenging for them …

Kahn Academy's science courses are designed to support the disciplinary core ideas of the Next Generation Science Standards (NGSS). Visit to learn more.

ओह! लगता है कुछ गड़बड़ हो गई। कृपया पुन: प्रयास करें। अरे नहीं, लगता है कोई त्रुटि आ गई है। आपको रिफ्रेश करना पड़ेगा। यदि इसके बाद भी यह समस्या …