1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements:

Statement I : Bt toxins are insect group specific and coded by a gene cry IAc.

Statement II : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $$\mathrm{pH}$$ of the insect gut.

In the light of the above statements, choose the correct answer from the options given below:

A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is true but Statement II is false
D
Statement I is false but Statement II is true
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following is an example of actinomorphic flower?

A
Datura
B
Cassia
C
Pisum
D
Sesbania
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called

A
in-situ conservation
B
Biodiversity conservation
C
Semi-conservative method
D
Sustainable development
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify the set of correct statements:

A. The flowers of Vallisneria are colourful and produce nectar.

B. The flowers of water lily are not pollinated by water.

C. In most of water-pollinated species, the pollen grains are protected from wetting.

D. Pollen grains of some hydrophytes are long and ribbon like.

E. In some hydrophytes, the pollen grains are carried passively inside water.

Choose the correct answer from the options given below.

A
C, D and E only
B
A, B, C and D only
C
A, C, D and E only
D
B, C, D and E only
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