EASY
Earn 100

'Meloidogyne incognita' infects the root of which plant and causes a great reduction in yield

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Important Questions on Biotechnology and Its Applications

MEDIUM

Assertion (A): Bt toxin exists as inactive prototoxin but once an insect ingests the inactive toxin, it is converted into an active form of toxin.

Reason (R):  Protoxin gets activated in insect gut due to the acidic pH in the gut, which solubilises the protein crystals.

The correct answer is:

EASY
In RNA interference, the dsRNA molecule prevents ___.
MEDIUM

Assertion (A) : Transgenic Golden Rice is rich in Vitamin A and prevents blindness.

Reason (R) : It is obtained from "Taiwan"

EASY
Golden rice is a genetically modified crop plant where the incorporated gene is meant for the biosynthesis of
EASY
Which part of the tobacco plant is infected by Meloidogyne incognita?
MEDIUM
Assertion (A): cry is insect group specific gene of Bt cotton
Reason (R):  cry IAc and cry IIAb controls the cotton boll worms
EASY
Which of the following is involved in silencing specific mRNA?
EASY
Silencing of a specific mRNA translation could be achieved through
EASY
What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in a boll worm?
EASY
Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to
EASY
Plants genes have been altered by manipulation for these uses
I) Increased efficiency of mineral usage
II) Alternative resources to industries
III) Enhanced nutritional value of food
IV) Better management practices and uses of agrochemicals
EASY
The crops engineered with Bt-toxin are resistant/tolerant to:
EASY
Bt toxin produced by Bacillus thuringiensis does not kill the producer because the toxin is
MEDIUM

The correct combination pair of given strategies in the area of health care developed by the rDNA technological processes.

(I) ELISA Antigen-antibody interaction
(II) RNA interference Cellular defence
(III) PCR Gene therapy
(IV) Transgenic potato Pseudomonas resistance
EASY

Match the following lists:

  List I   List II
A) Transgenic papaya I) Antigen-antibody interaction
B) Super weeds II) Ring spot virus
C) Soya bean III) Gene pollution leads to resistance to weedicides
D) ELISA IV) Herbicide tolerant

The correct match is

EASY
Which of these is not an advantage in genetically modified crops?
EASY
dsRNA is used to develop pest resistant tobacco plant by a technique called
EASY
RNA interference is used for which of the following purposes in the field of biotechnology?
EASY
In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to: