Which of the following is true of Golden Rice? A. It has been genetically engine

Question

Which of the following is true of Golden Rice? A. It has been genetically engineered to remove genes that the plant normally uses to break down vitamin A, leading to increased levels of vitamin A in rice B. It has been genetically engineered to possess genes that give it enzymes that allow it to synthesize vitamin A C. It has been genetically engineered to resist herbicides D. It has been genetically engineered to resist drought Which of the following is NOT true of the herbicide glyphosate? A. It is biodegradable B. Crop plants have been modified to resist its effects C. It has been modified to not affect food crop plants In molecular cloning, plasmids are put into bacteria by the process of: A. PCR B. Translation C. Restriction enzymes D. Transformation After the plasmid and gene of interest are treated with restriction enzymes, they are scaled together by: A. DNA polymerase B. DNA ligase C. PCR D. Gyrasc Which of the following sequences of DNA is an inverted repeal palindrome and could be recognized by a restriction enzyme? (1 have written the sequence as double stranded DNA) A. CCTAGG GGATCC B. GGAAGG CCTTCC C. CTCCTC GAGGAG D. AATTCC TTAAGG Polymerase Chain Reaction (PCR) uses a special type of DNA polymerase that is resisting denaturation at: A. High temperatures B. High pH values C. Low temperatures D. Low pH values A thermal cycler. Adds fresh reagents to the PCR tubes at timed intervals

Explanation / Answer

Ans 38: Golden rice has been genetically modified with two genes, viz., Phytoene synthase and carotene desaturase These two genes help in synthesis of beta carotene, a precursor for vit A. So option B is correct.

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