Germination of pollen grain on stigma is – in-situ and in-vivo. how ?
Pollen Germination Terms Pollen Germination: Terms Explained Question Germination of pollen grain on stigma is:…
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Exploring a Novel Genetic Interaction—Intergenic or Non-Allelic Interaction: The Case of Blood Groups and the Bombay Phenotype
Exploring a Novel Genetic Interaction—Intergenic or Non-Allelic Interaction: The Case of Blood Groups and the…
“Compound Microscope vs Electron Microscopes (SEM & TEM): Resolution, Examples & Differences”
🔬 Comparison: Compound Microscope vs SEM vs TEM Radiation Source Light Microscope: Visible Light SEM:…
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…
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…
Difference Between Progeny and Offspring in Genetics
Difference Between Progeny and Offspring in Genetics Aspect Progeny Offspring Definition Progeny refers to the…
PHOTOPERIODISM and VERNALISATION
Photoperiodism: Key Details Aspect Details Definition The response of plants to periods of day and…
Plant Growth and Development-2-NCERT
Section Details Growth Definition Growth is an irreversible, permanent increase in the size of an…
Plant Growth and Development-1-NCERT
Stage/Process Details 1. Development – Development is the sum of two processes: Growth and Differentiation.…