HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Rice does not provide enough of certain vitamins. How could biotechnology be used to change this?
A
Using a high nitrogen fertilzer.
B
Using herbicide to get rid of weeds.
C
Genetic modification of rice plants that are pest resistant and to produce vitamins they cannot make without biotechnology
D
Using pesticide to get rid of pests that can harm the crop.
Explanation: 

Detailed explanation-1: -Golden Rice is developed through genetic engineering. While ordinary rice does produce beta carotene, it is not found in the grain. Thus, scientists used genetic engineering to add the compound to the grain-a minor tweak that improved the grain’s nutritive value.

Detailed explanation-2: -This transgenic, or genetically modified, rice produces beta-carotene, a precursor to vitamin A, in the normally white endosperm (8) and has proven an effective source of vitamin A in humans (9). GR* is now awaiting final approval in Bangladesh. In July 2021, it was approved for cultivation in the Philippines.

Detailed explanation-3: -Golden rice is a genetically modified, biofortified crop. Biofortification increases the nutritional value of crops. Golden rice is genetically modified to produce beta-carotene, which is not normally present in rice. Beta-carotene is converted into vitamin A when metabolized by the human body.

Detailed explanation-4: -Cross-breeding, selective breeding, and mutation breeding are examples of traditional ways to make these changes. These breeding methods often involve mixing all of the genes from two different sources. They are used to create common crops like modern corn varieties and seedless watermelon.

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