NCERT Books for Class 12 Biology PDF Download
NCERT Books For Class 12 Biology PDF Download
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Our NCERT Biology Book for class 12 Tricks PDF Free Download is very Simple and Easy. We also Cover Basic Topics like Maths, Geography, History, Polity, etc, and study materials including Previous Year Question Papers, Current Affairs, Important Formulas, etc for upcoming Banking, UPSC, and SSC CGL Exams. Our NCERT Books Class 12 Biology: Access Chapter-Wise PDF will help you to upgrade your mark in any competitive exam.
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NCERT Class 12 All Subject PDF
NCERT Accountancy Books For Class 12 PDF Download – Click Here
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NCERT Maths Books for Class 12 PDF Download – Click Here
NCERT Biology Book Question Answers:-
1.प्लास्मोडियम फॉसिपरम , से मलेरिया होता हौ। वह किसमें पाया जाता है?
[A] जीवाणु
[B] विषाणु
[C] प्रोटोजोन
[D] कवक
Answer: C [प्रोटोजोन]
Notes:मलेरिया प्रोटोजोन से फैलता है।
2.मकड़ी का जाला किससे बना हुआ होता है?
[A] कार्बोहाइड्रेट पॉलीमर्स
[B] प्रोटीन
[C] वसा
[D] इनमें से कोई नहीं
Answer: B [प्रोटीन]
Notes:मकड़ी का जाला प्रोटीन से बना होता है।
3.निम्नलिखित में कौन सा जीवाणु एंडोसिम्बायोटिक नाइट्रोजन फिक्सिंग एसोसिएशन बनाता है जो नाइट्रोजन फिक्सेशन में मदद करता है।
[A] क्लोस्ट्रीडियम
[B] राइजोबियम
[C] साल्मोनेला
[D] इनमें से कोई नहीं
Answer: B [राइजोबियम]
Notes:राइजोबियम एक विशेष जीवाणु होता है जो पौधों में नाइट्रोजन फिक्सेशन में मदद करता है। यह मटर आदि में पाया जाता है।
4.कौन सा मिलान सही नहीं है?
[A] विद्युतचुम्बकत्व – फैराडे
[B] विरासत का सिद्धांत – डार्विन
[C] जड़त्व के नियम – न्यूटन
[D] इनमें से कोई नहीं
Answer: B [विरासत का सिद्धांत – डार्विन]
Notes:विरासत का सिध्दांत मेंडेल ने दिया था। जबकि डार्विन ने प्राकृतिक चयन का सिद्धांत दिया।
5.एक्जोवायोलॉजी क्या है?
[A] अन्य ग्रह पर जीवन
[B] वायु में जीवन
[C] स्थलीय जीवन
[D] शारीरिक
Answer: A [अन्य ग्रह पर जीवन]
6.पपीते में पीले रंग का कारण है?
[A] पपैन
[B] लाइकोपिन
[C] कैरिकाजैन्थिन
[D] कैरोटिन
Answer: C [कैरिकाजैन्थिन]
7.नर-पुष्प और स्त्री-पुष्प दोनों को जन्म देने वाला पादप क्या कहलाता है?
[A] द्धिलिंगी
[B] कलिंगाश्रयी
[C] उर्भयलिंगाश्रयी
[D] एकसंगमनी
Answer: A [द्धिलिंगी]
8.निम्नलिखित में से किस फसल में नील हरित शैवाल, मुख्यत: जैव उर्वरक के रूप में प्रयोग होते है?
[A] गेंहूँ
[B] चना
[C] धान
[D] सरसों
Answer: C [धान]
9.स्वतंत्र रूप से भूमि में रहने वाला अवायवीय जीवाणु जिसमें नाइट्रोजन स्थिरीकरण करने की क्षमता होती है, वह है?
[A] ऐजोटोबैक्टर
[B] राइजोबियम
[C] क्लॉस्ट्रिडियम
[D] उपरोक्त सभी
Answer: C [क्लॉस्ट्रिडियम]
10.प्रथम प्रतिजैविक पृथक किया गया है?
[A] पेनिसिलिन
[B] टेरामाइसिन
[C] स्ट्रेप्टोमाइसिन
[D] उपर्युक्त सभी
Answer: B [टेरामाइसिन]
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NCERT Class 12 Biology Books in English PDF Download
NCERT Class 12 Biology Books are provided in PDF form so that students can access it at any time anywhere. Class 12 NCERT Biology Books are created by the best professors who are experts in Biology and have good knowledge in the subject.
NCERT Books for Class 12 Biology – English Medium
- Class 12 Biology NCERT Book PDF Download
- Chapter 1: Reproduction in Organisms
- Chapter 2: Sexual Reproduction in Flowering Plants
- Chapter 3: Human Reproduction
- Chapter 4: Reproductive Health
- Chapter 5: Principle of Inheritance and Variation
- Chapter 6: Molecular Basis of Inheritance
- Chapter 7: Evolution
- Chapter 8: Human Health and Diseases
- Chapter 9: Strategies for Enhancement in Food Production
- Chapter 10: Microbes in Human Welfare
- Chapter 11: Biotechnology: Principles and Processes
- Chapter 12: Biotechnology and its Applications
- Chapter 13: Organisms and Populations
- Chapter 14: Ecosystem
- Chapter 15: Biodiversity and Conservation
- Chapter 16: Environmental Issues
NCERT Books for Class 12 Biology – Hindi Medium
जीव विज्ञान
- Class 12 Jeev Vigyan NCERT Book in Hindi PDF Download
- अध्याय 1: जीवों में जनन
- अध्याय 2: पुष्पी पादपों में लैंगिक जनन
- अध्याय 3: मानव जनन
- अध्याय 4: जनन स्वास्थ्य
- अध्याय 5: वंशागति तथा विविधता के सिद्धांत
- अध्याय 6: वंशागति के आणविक आधार
- अध्याय 7: विकास
- अध्याय 8: मानव स्वास्थ्य तथा रोग
- अध्याय 9: खाद्य उत्पादन में वृद्धि की कार्यनीति
- अध्याय 10: मानव कल्याण में सूक्ष्म जीव
- अध्याय 11: जैव प्रौद्योगिकी – सिद्धांत व प्रक्रम
- अध्याय 12: जैव प्रौद्योगिकी एवं उसके उपयोग
- अध्याय 13: जीव और समष्टियाँ
- अध्याय 14: पारितंत्र
- अध्याय 15: जीव विविधतता एवं संरक्षण
- अध्याय 16: पर्यावरण के मुद्दे
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