Read this note in Hindi to learn about blood pressure in humans. रक्त चाप रक्त द्वारा धमनियों की दीवारों पर डाला गया दाब है । यह सामान्य स्वस्थ व्यक्ति में बायें वेन्ट्रिकुलर सिस्टोल के समय अधिक (120 मि॰मी॰ मरकरी) होता है । इसे सिस्टोलिक रक्तचाप कहते हैं । बायें वेन्ट्रिकिल के सिस्टोल के पश्चात एवोरटिक वाल्व बंद हो जाता है [...]
The below mentioned article provides a quick note on the origin of species. Origin and Accumulation of Genetic Diversity: It is presumed that gene mutation caused by cosmic radiation and other mutagens, modifier genes, inversion of parts of chromosomes, translocation of genes from one chromosome to another, elimination or reduplication of chromosomes, introduce genetic diversity in natural populations. The accumulation [...]
The below mentioned article provides notes on Urea Cycle. Whenever amino acids are utilised for energy production or for the synthesis of glycogen or fat, an amino group is liberated in the form of ammonia. Living organisms must have some mechanisms of removing this ammonia from the cell environment because even low concentrations of ammonia are poisonous. (Levels of only [...]