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The correct answer is option 2: 1, 2 and 3.
Option 1: Genetic resources. Germplasm refers to the collection of genetic material, which includes seeds, tissues, or reproductive cells.
Option 2: Seeds or tissues for breeding. Germplasm is used in the propagation of plants and animals, and this can be in the form of seeds or tissues that are used for breeding purposes.
Option 3: Egg and sperm repository. Germplasm also includes the storage of eggs and sperm, which can be used for artificial insemination or reproductive technologies.
Option 4: Germ cell`s determining zone. This statement is not accurate. The concept of germplasm refers to genetic material and the storage of reproductive cells, rather than a specific determining zone.
Therefore, the correct answer is option 2: 1, 2, and 3.