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Describe advantages and disadvantages of producing a crop of potato plants using asexual (tuber) rather than sexual (true seed) propagation.
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- Name TWO (2) characteristics of dark grown plant and provide specific term for dark grown plant. *Compare and contrast the characteristics of a somatic embryo and a shoot grown directly from a leaf explant. Explain the differences between somatic and androgenic embryos.Describe three mechanisms whereby seed dormancy is broken in different types of seeds. How are these mechanisms related to the typical environment of the plant?
- Suppose that 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit. What does this indicate about the pollination process and success? A) 100% success: 100 pollen grains grew to 50 ovules, two to each, and double fertilization occurred. B) 100% success: Only 50% of the pollen grains germinated, but each produced 2 sperms to complete double fertilization in 50 seeds. C) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei. D) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 100 polar nuclei. correct answer and explanation why please.In producing seeds, what specific method is being done?Discuss the leaf epinastic movement of monggo (Vigna radiata) seeds within five days of seed germination.
- Briefly elaborate the characteristics of somatic embryos and how to obtain somatic embryos indirectly from the provided in vitro plantletsDifferentiate the following treatments based on the effect of light on monggo (Vigna radiata) seed germination: directly exposed to sunlight placed in shaded area (indirect light) place in the dark (complete darkness)In most parts of the world, commercial potato crops are produced asexually by planting tubers. However, in some regions of the world, such as Southeast Asia and the Andes, some potatoes are grown from true seeds. Discuss the advantages and disadvantages of growing potatoes from true seed.