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DRAWING DIAGRAMS - PARTS - PROCEDURE


                      ASEXUAL REPRODUCTIVE METHODS                                         Asexual Reproductive Methods
                                                                                        1. The ability of an organism to produce a new generation of
                                                                                           individuals  of  the  same  speacies is  called  Reproduction.
                                                                                        2. In Asexual reproduction, new individuals are produced  without the  fusion of  gametes.
                                                                                        3. Organisms can reproduce  asexually  in many ways. They  are :
                                                                                           1. Fission :  Single celled organisms such as bacteria, Amoeba, Eugleena and
                                                                                           Paramoecium, reproduce by splitting into two or more off springs.
                                                                                           2. Budding : 1. A growth on a body (bud) that grows to form nearly identical copy of the parent.
                                                                                           2. When the bud totally grows then it seperates from the parent and survives individual. Ex : Yeast, Hydra.
                                                                                           3. Fragmentation : In this process a detached fragment of fungal hyphae gives
                                                                                           rise to new individual under suitable conditions. Ex : Algae, Fungi
                                                                                           4. Sporulation  :    1. Most  of the  fungi like Rhizopus,  Mucor  etc. Bacteria  and  non-
                                                                                           flowering  plant such  as fern  and moss  reproduce by the method of spore  formation.
                                                                                           2. A spore is a small microscopic, unicellular, reproductive unit. Ex : Asperigillus,
                                                                                           Mucor, Moss, Fern.
                                                                                           5. Regeneration : If the individual is somehow cut or broken up into many pieces,
                                                                                           these  pieces  grow  into  seperate individuals.  Ex : Planaria.


                    NATURAL VEGETATIVE PROPAGATION METHODS                                Natural  Vegetative  Propagations

                                                                                                                                              How to draw
                                                                                      1. Several plants may be grown from vegetative           pl. scan QR
                                                                                         parts like stems, roots, leaves etc and is called
                                                                                         vegetative propagation.
                                                                                      2. Vegetative propagation may be natural or man made.
                                                                                      3.  1. Leaves / Leaf buds     -   Bryophyllum

                                                                                          2. Stems                  -   Stolons - Vallisneria, Strawberry
                                                                                                                         Bulbs - Onion (Alliumsepa)
                                                                                                                         Corns - Colacasia
                                                                                                                         Tuber - Potato

                                                                                          3. Roots                  -   Dahlia, Radish, Carrot.

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