Answer:
Medical uses: The field of genetic engineering is making progress rapidly and it has helped doctor's to fight many challenging diseases. One of the medical use of genetic engineering is the production of insulin by genetic engineering and also the production of vaccines through this technique.
Agricultural uses: The field of biotechnology can change the life of farmers once it is fully known that the genetically engineered crops cannot harm the humans. One of the uses of genetic engineering in agriculture is the production of crops containing increased nutrition. For example,Golden rice which carries vitamin A in it.
Environmental uses: Genetic engineering is used to clean the Earth by producing genetically engineered microorganisms which can not only break down waste but also can degrade plastics.
Sperm cell. Meiosis is the creation of Sex cells, therefore, the answer would be Sperm Cell.
You are correct the answer is nuclear fusion
Iodine, like all other minerals, is required in considerable quantity in the body. The function of iodine is that it is necessary for proper metabolic function in an animal.
The lack of iodine in a mammal will cripple the physical and metabolic functions and causes developmental delays in the mammal.