Genetic Diversity Differences Within a Species

Duration: 18 min

This video lesson is available to enrolled students.

Return to /learn/UPTET-PAPER-1/environmental-studies/earth-space-environment-resources-1x87o39/biodiversity-and-threatened-species-i4nx2u/asset-genetic-diversity-differences-within-a-species after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Child Development and Pedagogy: विकास की अवधारणा / Concept of Development, विकास के मनोवैज्ञानिक सिद्धांत / Psychological Theories of Development, व्यक्तिगत भिन्नताएँ, व्यक्तित्व एवं जेंडर / Individual Differences, Personality and Gender, बुद्धि एवं सृजनात्मकता / Intelligence and Creativity, अधिगम एवं इसके सिद्धांत / Learning and Its Theories, बालक कैसे सोचते एवं सीखते हैं / How Children Think and Learn, संवेग, अभिप्रेरणा, मानसिक स्वास्थ्य एवं निर्देशन / Emotion, Motivation, Mental Health and Guidance, समावेशी शिक्षा / Inclusive Education, शिक्षण-अधिगम प्रक्रिया / Teaching-Learning Process, शिक्षण विधियाँ एवं रणनीतियाँ / Teaching Methods and Strategies, आकलन एवं मूल्यांकन / Assessment and Evaluation, पाठ्यचर्या और विद्यालयी गतिविधियाँ / Curriculum and School Activities, पाठ योजना और शिक्षण कौशल / Lesson Planning and Teaching Skills, शिक्षण संसाधन और शैक्षिक प्रौद्योगिकी / Teaching Resources and Educational Technology, कक्षा प्रबंधन और सम्प्रेषण / Classroom Management and Communication, शिक्षक पहचान और व्यावसायिक विकास / Teacher Identity and Professional Development, शैक्षिक विचारक, उद्देश्य एवं राष्ट्रीय नीतियाँ / Educational Thinkers, Aims and National Policies, विद्यालय नेतृत्व और प्रशासन / School Leadership and Administration, जीवन कौशल, मूल्य, शांति एवं पर्यावरण शिक्षा / Life Skills, Values, Peace and Environmental Education, सामाजिक विज्ञान शिक्षणशास्त्र / Social Science Pedagogy, सामाजिक एवं राजनीतिक जीवन / Social and Political Life, विज्ञान शिक्षण शास्त्र / Science Pedagogy, संविधान, आयोग, अधिनियम एवं योजनाएँ / Constitution, Commissions, Acts and Schemes in Education, कंप्यूटर हार्डवेयर एवं परिधीय उपकरण / Computer Hardware and Peripherals
  2. Language I — Hindi: भाषा, लिपि और वर्ण-विचार, संधि, शब्द-स्रोत और शब्द-रचना, समास, शब्द-भेद: विकारी और अविकारी, लिंग, वचन, कारक, काल और वाच्य, वाक्य-विचार और शुद्ध लेखन, शब्द-भंडार, रस, छंद, अलंकार और शब्द-शक्ति, हिंदी साहित्य, अपठित बोध, हिंदी शिक्षणशास्त्र
  3. Language Pedagogy (Language I and II):
  4. Language II — English: Sounds, Spelling and Word Formation, Parts of Speech, Nouns and Pronouns, Articles, Determiners and Adjectives, Verbs and Modals, Tenses and Subject–Verb Agreement, Adverbs, Prepositions and Conjunctions, Sentence Structure, Voice and Narration, Vocabulary, Sentence Correction and Writing Skills, Poetry and English Literature, Reading Comprehension, Pedagogy of English Language
  5. Language II — Urdu: رسم الخط، املا اور تلفظ, ذخیرۂ الفاظ, قواعد, محاورے اور ضرب الامثال, شعر و سخن, اردو ادب کی تاریخ, تفہیمِ عبارت, اردو کی تدریس
  6. Language II — Sanskrit: वर्णविचारः एवं संज्ञाप्रकरणम्, सन्धिप्रकरणम्, शब्दरूपाणि, धातुरूपाणि, कारकाणि एवं विभक्तयः, उपसर्गाः एवं अव्ययानि, प्रत्ययप्रकरणम्, समासप्रकरणम्, वाच्यप्रकरणम्, संख्याज्ञानम्, शब्दज्ञानम् एवं अनुवादः, अपठितावबोधनम्, संस्कृतसाहित्यम् एवं काव्यशास्त्रम्, संस्कृतशिक्षणशास्त्रम्
  7. Mathematics: संख्या पद्धति एवं स्थानीय मान / Number System & Place Value, मूलभूत संक्रियाएँ, सरलीकरण एवं पैटर्न / Basic Operations, Simplification & Patterns, गुणनखंड, विभाज्यता, म.स.प. एवं ल.स.प. / Factors, Divisibility, HCF & LCM, भिन्न एवं दशमलव / Fractions & Decimals, वर्ग, घन, घातांक एवं करणी / Squares, Cubes, Exponents & Surds, मापन: लंबाई, भार, धारिता, समय एवं मुद्रा / Measurement: Length, Mass, Capacity, Time & Money, बीजगणित / Algebra, अनुपात, समानुपात, औसत एवं आयु / Ratio, Proportion, Average & Ages, प्रतिशत, लाभ-हानि एवं ब्याज / Percentage, Profit–Loss & Interest, समय-कार्य एवं चाल-दूरी / Time & Work and Speed–Distance, रेखाएँ, कोण, आकृतियाँ एवं निर्देशांक / Lines, Angles, Shapes & Coordinates, त्रिभुज, चतुर्भुज, वृत्त एवं त्रिकोणमिति / Triangles, Quadrilaterals, Circles & Trigonometry, क्षेत्रमिति: परिमाप, क्षेत्रफल एवं आयतन / Mensuration: Perimeter, Area & Volume, आँकड़ा प्रबंधन, सांख्यिकी एवं प्रायिकता / Data Handling, Statistics & Probability, गणित शिक्षणशास्त्र / Mathematics Pedagogy
  8. Environmental Studies: परिवार, मित्र और समुदाय / Family, Friends and Community, पौधे / Plants, उत्तर प्रदेश सामान्य ज्ञान / Uttar Pradesh GK, जंतु / Animals, खेती और पशुपालन / Farming and Animal Husbandry, भोजन और पोषण / Food and Nutrition, शरीर और स्वास्थ्य / Body and Health, जल / Water, आवास / Shelter, यात्रा, परिवहन और संचार / Travel, Transport and Communication, मानचित्र, दिशाएँ और भारत / Maps, Directions and India, हम क्या बनाते और करते हैं / Things We Make and Do, पृथ्वी, आकाश और आपदाएँ / Earth, Sky and Disasters, पर्यावरण, पारिस्थितिकी और वन्यजीव / Environment, Ecology and Wildlife, प्राकृतिक संसाधन, प्रदूषण और जलवायु परिवर्तन / Natural Resources, Pollution and Climate Change, पर्यावरण अध्ययन का शिक्षणशास्त्र / Pedagogy of Environmental Studies
  9. Mathematics (Video Lessons & Notes): क्रम, बैठक व्यवस्था एवं पहेली / Ranking, Seating Arrangement & Puzzles, कैलेंडर एवं घड़ी / Calendar & Clock, पासा एवं घन / Dice & Cubes
  10. Environmental Studies (Video Lessons & Notes): प्राचीन भारत का इतिहास / Ancient Indian History, मध्यकालीन भारत का इतिहास / Medieval Indian History, औपनिवेशिक भारत एवं समाज सुधार / Colonial India and Social Reform, भारतीय राष्ट्रीय आंदोलन एवं स्वतंत्र भारत / Indian National Movement and Independent India, पृथ्वी, ग्लोब एवं मानचित्र / Earth, Globe and Maps, भौतिक भूगोल / Physical Geography, भारत का भूगोल / Geography of India, संसाधन एवं विकास / Resources and Development, प्राकृतिक वनस्पति, वन्य जीवन एवं विश्व के प्रदेश / Natural Vegetation, Wildlife and World Regions, भारतीय संविधान / Indian Constitution, सरकार: केंद्र, राज्य एवं स्थानीय / Government: Union, State and Local, अर्थशास्त्र एवं भारतीय अर्थव्यवस्था / Economics and Indian Economy, भोजन, पोषण एवं स्वास्थ्य / Food, Nutrition and Health, रासायनिक अभिक्रियाएँ, अम्ल, क्षार एवं लवण / Chemical Reactions, Acids, Bases and Salts, बल, दाब, कार्य एवं ऊर्जा / Force, Pressure, Work and Energy, प्रकाश / Light, सजीव जगत: वर्गीकरण, कोशिका एवं ऊतक / Living World: Classification, Cell and Tissues, मानव शरीर एवं अंग तंत्र / Human Body and Organ Systems, पर्यावरण एवं पारिस्थितिकी / Environment and Ecology, पर्यावरण एवं जलवायु समसामयिकी / Environment & Climate Affairs, विज्ञान एवं प्रौद्योगिकी / Science & Technology, भारतीय कला एवं संस्कृति / Indian Art & Culture, स्थिर सामान्य ज्ञान / Static General Knowledge, बिहार सामान्य ज्ञान / Bihar GK, राजस्थान सामान्य ज्ञान / Rajasthan GK, प्रौद्योगिकी, मापन एवं गति / Technology, Measurement and Motion, ऊष्मा एवं ध्वनि / Heat and Sound, विद्युत एवं चुंबकत्व / Electricity and Magnetism, ब्रह्मांड एवं प्राकृतिक परिघटनाएँ / Universe and Natural Phenomena, पदार्थ एवं उसकी संरचना / Matter and Its Structure, धातु, अधातु एवं दैनिक उपयोग की सामग्री / Metals, Non-metals and Materials of Daily Use, भारतीय अर्थव्यवस्था: आँकड़े एवं समसामयिकी / Indian Economy: Data & Current Affairs, रक्षा एवं सुरक्षा / Defence & Security, सरकारी योजनाएँ, शासन एवं आधारभूत संरचना / Government Schemes, Governance & Infrastructure
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This lecture introduces the concept of genetic diversity as inherited variation among individuals and populations of a species, emphasizing that individuals of the same species need not be genetically identical. The instructor uses bilingual English and Hindi slides, highlighting key terms such as 'inherited variation' and 'tolerance of environmental conditions' with red underlines and circles. The lesson explains that genetic diversity influences traits like color, growth, disease resistance, and environmental tolerance, providing material for natural selection and adaptation. A hand-drawn diagram comparing rice varieties illustrates variation within a population. The lecture then transitions to species diversity, defined as the variety of species in a community, and ecosystem diversity, the variety of natural systems within a region. The final section focuses on species richness, defined as the number of different species in a defined area, clarifying that richness counts species rather than individuals. Examples using neem, mango, and peepal trees illustrate this distinction. The lecture concludes with species evenness, using a comparative table to show how two communities with identical species counts can have different distributions of individuals, with Community 1 demonstrating greater evenness due to a more equal distribution.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video introduces genetic diversity as inherited variation among individuals and populations of a species. The instructor highlights key terms like 'inherited variation' and 'growth' on the bilingual slide, emphasizing that genetic diversity influences traits such as color, growth, disease resistance, and environmental tolerance. The slide notes that genes carry hereditary information and that individuals of one species need not be genetically identical, with crop varieties and animal breeds provided as familiar examples.

  2. 2:00 – 5:00 02:00-05:00

    The lecture continues with the definition of genetic diversity, using red circles and underlines to emphasize key concepts. The instructor highlights that different varieties of one species do not automatically count as different species, marking this as an exam focus point. The slide transitions to 'Why Genetic Diversity Matters,' listing points such as genetic variation providing material for natural selection and adaptation, and different individuals responding differently to stress. Dog images are circled to illustrate animal breeds.

  3. 5:00 – 10:00 05:00-10:00

    The instructor introduces a hand-drawn diagram illustrating genetic variation in rice, with a red box labeled 'Rice 600gm' divided into '300 gm' and '300 Rice Var.' sections. The lecture then transitions to species diversity, defined as the variety of species in a community, illustrated with a tree community diagram. Green arrows connect the text definition to the illustration. The lesson progresses to ecosystem diversity, showing four distinct landscape images representing different natural systems within a region.

  4. 10:00 – 15:00 10:00-15:00

    The focus shifts to species richness, defined as the number of different species recorded in a defined area or sample. The instructor highlights that richness counts species, not individuals, using examples like one hundred neem trees representing one species, while neem, mango, and peepal represent three species. Handwritten notes define R as Richness and S as the unit number, clarifying the distinction between species and individuals in ecological measurements.

  5. 15:00 – 18:10 15:00-18:10

    The lecture concludes with species evenness, describing how evenly individuals are distributed among species. A comparative table shows Community 1 and Community 2 with identical species counts but different individual distributions. The instructor highlights that Community 1 has greater evenness due to a more equal distribution, using green arrows to point out the equal distribution in Community 1 versus the skewed distribution in Community 2, reinforcing the difference between counting species and counting individuals.

The lecture systematically builds from genetic diversity to species and ecosystem diversity, then to species richness and evenness. The instructor uses bilingual slides, visual annotations, and hand-drawn diagrams to clarify concepts. Key distinctions are made between inherited variation and environmental effects, species and individuals, and richness and evenness. The progression from within-species variation to community-level metrics provides a comprehensive overview of biodiversity concepts, with exam-relevant points highlighted throughout.

Loading lesson…