Golden Rice MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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Golden Rice is considered one of the most asked concept.
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EASYGolden Rice is genetically modified (GM) to produce beta carotene is the precursor of ____
Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency?
Golden rice is a genetically modified crop plant where the incorporated gene is meant for biosynthesis of:
Concepts Covered - 1
Golden Rice
- It is a transgenic variety of rice which contains good quantities of beta-carotene (provitamin A - inactive state of vitamin A).
- Beta-carotene is the principal source of vitamin A.
- Since the rice grains become yellow in colour due to carotene, the rice is commonly called golden rice.
- Golden rice contains three transgenes:
- two are isolated from daffodils (Narcissus pseudonarcissus) which codes for phytoene synthase and lycopene beta-synthase.
- the third gene is isolated from the bacterial species Erwinia uredovora which codes for phytoene desaturase.
- This combination covers the requirements of beta carotene synthesis.
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