“Compound Microscope vs Electron Microscopes (SEM & TEM): Resolution, Examples & Differences”
🔬 Comparison: Compound Microscope vs SEM vs TEM Radiation Source Light Microscope: Visible Light SEM:…
NCERT LINE BY LINE
NCERT – Plant Evolution Picture
The Evolutionary Saga of Plants 🌿 The Evolutionary Saga of Plants Plants have shaped Earth’s…
Genera like Selaginella and Salvinia which produce two kinds of spores, macro (large) and micro (small) spores, are known as heterosporous. The megaspores and microspores germinate and give rise to female and male gametophytes, respectively. The female gametophytes in these plants are retained on the parent sporophytes for variable periods. The development of the zygotes into young embryos take place within the female gametophytes. This event is a precursor to the seed habit considered an important step in evolution. Assertion – In gymnosperms, the male and female gametophytes depend on the sporophyte.
Assertion & Reason: Gametophyte Dependence in Gymnosperms Assertion (A): In gymnosperms, the male and female…
NCERT-Continued self pollination lead to inbreeding depression
Inbreeding Depression in Plants Inbreeding Depression in Plants Inbreeding depression refers to the reduced biological…
NCERT-Convergent Evolution of Mammal—Diagram Explained
Convergent Evolution of Mammals Convergent Evolution, Divergent Evolution, and Adaptive Radiation Convergent Evolution Convergent evolution…
Double fertilization is an event unique to flowering plants.
Double Fertilization – Assertion & Reason Assertion & Reason – Double Fertilization Assertion (A): Double…
Special Integuments – Aril and Caruncle or Strophiole
Caruncle and Aril: Structures and Significance Feature Caruncle Aril Definition A spongy, bilobed outgrowth of…
NCERT- Evolution Diagram Dinosaur -A family tree of dinosaurs and their living modern day counterpart organisms like crocodiles and birds
Evolutionary Lineage of Archosauria Category Description Examples Archosauria (Common Ancestor) Archosaurs, a group of reptiles…
Cytoplasmic Inheritance by Sidd Sir – Male sterility in maize, variegated leaves in Mirabilis jalapa.
Comparison of Cytoplasmic and Nuclear Inheritance Feature Cytoplasmic Inheritance Nuclear Inheritance Definition Transmission of traits…
MOLECULAR BASIS OF INHERITANCE -1- Over the next hundred years, the nature of the putative genetic material was investigated culminating in the realisation that DNA – deoxyribonucleic acid – is the genetic material, at least for the majority of organisms.
Master Table: Molecular Basis of Inheritance Topic Explanation Key Details MCQ Inheritance Patterns Factors regulating…