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How many statements are incorrect? (i)...

How many statements are incorrect?
(i) "Bt" in "Bt-cotton" indicates Bacillus thuringensis bacteria from which cry gene is taken .
(ii) Golden rice is a biofortified rice i.e., vitamin A enriched rice.
(iii) The transgenic Brassica napus seeds are used to produce statins.
(iv) Transgentic tobacco is developed to resistant against Meloidegyne incognita by RNAi technology.

A

one

B

two

C

three

D

four

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many statements are incorrect, we will analyze each statement one by one. 1. **Statement (i)**: "Bt" in "Bt-cotton" indicates Bacillus thuringiensis bacteria from which cry gene is taken. - **Analysis**: This statement is correct. Bt-cotton is genetically modified to express a protein from the Bacillus thuringiensis bacterium, which is derived from the cry gene. 2. **Statement (ii)**: Golden rice is a biofortified rice i.e., vitamin A enriched rice. - **Analysis**: This statement is also correct. Golden rice has been genetically engineered to produce beta-carotene, a precursor to vitamin A, making it a biofortified crop. 3. **Statement (iii)**: The transgenic Brassica napus seeds are used to produce statins. - **Analysis**: This statement is incorrect. Transgenic Brassica napus (canola) is primarily known for producing hirudin, an anticoagulant, not statins. Statins are typically produced by other organisms, such as fungi. 4. **Statement (iv)**: Transgenic tobacco is developed to be resistant against Meloidogyne incognita by RNAi technology. - **Analysis**: This statement is correct. Transgenic tobacco has been developed using RNA interference (RNAi) technology to confer resistance against Meloidogyne incognita, a root-knot nematode. **Conclusion**: - Out of the four statements, three are correct (i, ii, and iv) and one is incorrect (iii). Therefore, the number of incorrect statements is **1**. ### Summary of Incorrect Statements: - **Incorrect Statement**: Statement (iii) is incorrect.
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