Genetic engineering of agricultural crops has primarily increased the productivity of modern farming byResponsesconverting annual plants to perennials, which do not require replantingconverting annual plants to perennials, which do not require replantingincreasing the size of fruits and grainsincreasing the size of fruits and grainsincreasing plants’ drought resistance and resistance to pestsincreasing plants’ drought resistance and resistance to pestscutting the cost of bulk seeds during planting seasonscutting the cost of bulk seeds during planting seasonschanging vegetable and fruit colors to suit consumer demands

conventional breeding for crop improvement

Despite many years of work, we only have a handful of genetically modified plants so far that are stress tolerant. One reason for this is --------- Group of answer choices There is no method currently available to genetically manipulate crop plants. The gene regulatory pathways are complicated, making genetic engineering difficult. Crop plants have no genetic dievrsity. Making crop plants tolerant to an environmental stress reduces their overall yield.

While many people think of genetic manipulation of food crops as being aimed at developing larger and larger , some plant breeders have in fact concentrated on discovering or producing dwarf varieties, which are roughly half as tall as normal varieties. Which of the following would, if true, most help to explain the strategy of the plant breeders referred to above?Choose the best optionClear ResponsePlant varieties used as food by some are used as ornamentals by others.The wholesale prices of a given crop decrease as the supply of it increasesCrops once produced exclusively for human consumption are often now used for animal feed.Short plants are less vulnerable to strong wind and heavy rains

Which of these is not a way in which biotechnology can benefit agriculture?2 pointsProducing better-tasting fruitsIncrease crop populationReducing the loss of crops to insectsImproving farm machinery

Many gardeners grow new plants from cuttings instead of from seeds.Which of the following is a reason for this?It is quicker than growing plants from seeds.The new plants will be genetically different to the parent plant.It is more expensive than growing plants from seeds.Growing new plants from cuttings is usually less successful than growing new plants from seeds.