NCERT LINE BY LINE

Difference Between Progeny and Offspring in Genetics

Difference Between Progeny and Offspring in Genetics Aspect Progeny Offspring Definition Progeny refers to the…

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Five factors are known to affect Hardy-Weinberg equilibrium. These are gene migration or gene flow, genetic drift, mutation, genetic recombination and natural selection. When migration of a section of population to another place and population occurs, gene frequencieschange in the original as well as in the new population. New genes/alleles are added to the new population and these are lost from the old population.There would be a gene flow if this gene migration, happens multiple times.If the same change occurs by chance, it is called genetic drift. Sometimesthe change in allele frequency is so different in the new sample of populationthat they become a different species. The original drifted population becomes founders and the effect is called founder effect.

MECHANISMS OF EVOLUTION Although the term “evolution” is often used synonymously with “natural selection,” they…

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Cleistogamy is a highly advantageous strategy in stable or harsh environments, where ensuring reproduction outweighs the need for genetic diversity. However, it is often complemented by chasmogamous flowers in plants that balance the need for self-pollination with opportunities for cross-pollination, allowing them to enjoy the benefits of both strategies.

Cleistogamous Flowers: Benefits and Features Aspect Description Protection Cleistogamous flowers near the soil level are…

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PHOTOPERIODISM and VERNALISATION

Photoperiodism: Key Details Aspect Details Definition The response of plants to periods of day and…

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Interaction :Competition for NEET

Competition and Its Ecological Outcomes (STR) Topic Description Examples Introduction to Competition Competition is an…

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Lungs – Pulmonary Pressures and Lung Functioning for Biology Olympiad

Short Time Reading Aspect Description Atmospheric Pressure (Patm) The pressure exerted by air weight in…

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Plant Growth and Development-2-NCERT

Section Details Growth Definition Growth is an irreversible, permanent increase in the size of an…

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Plant Growth and Development-1-NCERT

Stage/Process Details 1. Development – Development is the sum of two processes: Growth and Differentiation.…

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FACTORS AFFECTING PHOTOSYNTHESIS – NCERT- NEET

Factor Description Light Quality Photosynthesis primarily uses red (650-700 nm) and blue (400-500 nm) light…

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Electrons generally move from a more negative (lower) or less positive redox potential to less negative or a more positive (higher) redox potential, reflecting a downhill energy flow. However, in the Z-scheme of photosynthesis, there are two key points where light energy is used to excite electrons, allowing them to move uphill to a more positive redox potential.

Electron Carrier Redox Potential (mV) Water (H₂O) +820 mV P680 (PSII reaction center) +1,200 mV…

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