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(i) This is vegetative reproduction, where new plants grow from underground parts like tubers, rhizomes, or bulbs. Example: Potato grows from tubers. (ii) Advantages: fast multiplication, true-to-type plants. Disadvantages: diseases spread easily, no genetic variation. (iii) Offsprings show little variation because they ...
(i) Seed propagation is not used in bananas because cultivated varieties are seedless and sterile.(ii) Vegetative propagation uses suckers or offsets from the parent plant’s base, which grow into new plants.(iii) Advantage: true-to-type plants; Disadvantage: diseases spread.(iv) ...
Haemodialysis removes wastes and excess water from blood when kidneys fail. Blood passes through a dialysis machine with a semipermeable membrane. Limitations: temporary, cannot replace all kidney functions. Precautions: follow fluid restrictions and maintain hygiene to prevent infections. CBSE Sample Paper ...
A man can survive with one kidney because a single healthy kidney can perform the functions of both: filtering blood, removing waste, balancing water and salts, and producing hormones. The remaining kidney enlarges slightly to compensate. class 10 science sample paper ...
In pea plants, purple flowers (PP) are dominant over white (pp). Crossing PP × pp gives F₁ as Pp, all showing purple flowers. F₁ self-crossed (Pp × Pp) produces F₂ in 3:1 ratio: 3 purple, 1 white. F₁ visible characters: All purple ...
