CBSE Class 12 Biology Reproduction in Organisms Diagrams

This Class 12 Biology page gives the four key diagrams of Chapter 1 Reproduction in Organisms: a fruit showing seeds, binary fission in Amoeba, budding in yeast and the types of gametes (isogametes and anisogametes), each described with its labels.

CHAPTER 1 - REPRODUCTION IN ORGANISMS

1. FRUIT SHOWING SEEDS

[Figure: Cross section of a fruit with green seeds inside the cavity. Labels: SEED and PERICARP]

2. BINARY FISSION IN AMOEBA

[Figure: Steps of binary fission shown top to bottom with downward arrows. An Amoeba with its Nucleus; the nucleus elongates; the nucleus divides into two and the cell body begins to constrict; the cell pinches in the middle; two Daughter cells are formed]

3. BUDDING IN YEAST

[Figure: Four yeast cells in sequence from left to right. A single cell; then a cell with a small bud on top; then a larger bud; then a bud almost as large as the parent cell, still attached]

4. TYPES OF GAMETES a) ISOGAMETES b).& c) ANISOGAMETES

[Figure: (a) Two similar flagellated gametes of the same size, each with two flagella and a nucleus. (b) and (c) Anisogametes: (b) a large round non-motile gamete with a central nucleus and a very small gamete beside it; (c) a large round gamete with a thick wall and two small tailed motile gametes (sperm-like) next to it]

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