The Global Seed Bank is a "doomsday vault" located on the Norwegian island of Svalbard, where millions of seeds from important food plant species from all over the world are housed. This is a protective measure in case of a mass extinction of food plant species worldwide due to an ecological catastrophe, such as global climate change. a. Why would the Global Seed Bank contain seeds from a corn plant in Nebraska and seeds from a corn plant from Nigeria? b. When a country deposits seeds in the vault, they are required to provide multiple seeds from multiple individuals found in that population. Why?
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Corn plants grown in Nebraska thrive in a temperate climate with a specific temperature range, while corn plants in Nigeria are grown in a warm climate with different growing conditions. ** Show more…
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Monsanto sells genetically modified seed to farmers. It needs to decide how much seed to put into a warehouse to serve demand for the next growing season. It will make one quantity decision. It costs Montanso $7 to make each kilogram (kg) of seed. It sells each kg for $46. If it has more seed than demanded by the local farmers, the remaining seed is sent overseas. Unfortunately, it only earns $2 per kg from the overseas market (but this is better than destroying the seed because it cannot be stored until next year). If demand exceeds its quantity, then the sales are lost—the farmers go to another supplier. As a forecast for demand, it will use a normal distribution with a mean of 300,000 and a standard deviation of 75,000. A) How many kilograms should Montanso place in the warehouse before the growing season? B) If Montanso put 450000 kgs in the warehouse, what is its expected revenue (include both domestic revenue and overseas revenue)? C) How many kilograms should Montanso place in the warehouse to minimize inventory while ensuring that the stockout probability is no greater than 1%? D) What is the maximum profit for this seed?
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The height of the seed head in wheat at maturity is determined by several genes. In one variety, the head is just 9 inches above the ground; in another, it is 33 inches above the ground. Plants from the 9 -inch variety were crossed to plants from the 33 -inch variety. Among the $\mathrm{F}_{1},$ the seed head was 21 inches above the ground. After self-fertilization, the $F_{1}$ plants produced an $F_{2}$ population in which 9 -inch and 33 -inch plants each appeared with a frequency of $1 / 256 .$ (a) How many genes are involved in the determination of seed head height in these strains of wheat? (b) How much does each allele of these genes contribute to seed head height? (c) If a 21 -inch $\mathrm{F}_{1}$ plant were crossed to a 9 -inch plant, how often would you expect 18-inch wheat to occur in the progeny?
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