in Biotechnology and its Applications by

1 Answer

0 votes

Genetically Modified Plants are the plants, whose genes have been manipulated /altered. It can enhance the nutritional value of food crops.

  1. Golden Rice, a nutritionally modified crop was developed at the Swiss Federal Institute of Technology.
  2. It is rich in Pro-vitamin A (β-carotene).
  3. It was developed as a means for alleviating Vitamin A deficiency in the diets of poor people, since the traditional varieties of rice did not produce enough Pro-vitamin A.
  4. It contains β-carotene gene from daffodil plant and one bacterial gene.
  5. The genetic manipulation to produce Golden Rice required the introduction of three genes encoding the enzymes - Carotene desaturase, Lycopene -β-cyclase and Phytoene synthase.
  6. The grains of golden rice appear golden-yellow in colour due to the presence of Pro-vitamin A.
  7. Golden rice has solved the problem of night blindness which resulted due to deficiency of Vitamin A, especially in children.
Biology Questions and Answers for Grade 10, Grade 11 and Grade 12 students, Junior and Senior High Schools, Junior Colleges, Undergraduate biology programs and Medical Entrance exams.