गर्भाधान के दौरान जब सामान्य 46 के बजाय 47 गुणसूत्र (chromosomes) होते हैं (जैसे ट्राइसॉमी 21 में), तो यह डाउन सिंड्रोम जैसी स्थिति की ओर ले जाता है, जो मुख्य रूप से किससे संबंधित है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?