Free Biotechnology And Its Applications (Daily Quiz: 12) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following genes were introduced in cotton to protect it from cotton bollworms?

(a) Bt Ac and Bt Ab

(b) Cry Ac and Cry ab

(c) Cry IAc and Cry II Ab

(d) Nif genes

Question-2

Read the following four statements (i-iv) and answer the question ?

1. The first transgenic buffalo, Rosie produced milk which was human alpha-lactal albumin enriched.
2. Restriction enzymes are used in isolation of DNA from other macro-molecules.
3. Downstream processing is one of the steps of RDNA technology.
4. Disarmed pathogen vectors are also used in transfer of R-DNA into the host.

Which are the two statements having mistakes?

(a) (iii) and (iv)

(b) (ii) and (iii)

(c) (i) and (iii)

(d) (i) and (ii)

Question-3

Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells)

(a) An antioxidant

(b) A particular hormone

(c) A toxic protein

(d) Both sense and anti-sense RNA

Question-4

The genetically modified (GM) brinjal in India has been developed for:

(a) enhancing shelf life

(b) insect-resistance

(c) enhancing mineral content

(d) drought-resistance

Question-5

Which of the following is produced by genetically engineered bacterium?

(a) Insulin

(b) Tyrosine

(c) Glycogen

(d) ADH