NEET Practice Questions (MCQs) with Answers & Solutions

List of endangered species was released by:

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 to active form due to acidic pH of the insect gut.

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

Lecithin, a small molecular weight organic compound found in living tissues, is an example of:

Which of the following is an example of actinomorphic flower?

Tropical regions show greatest level of species richness because:

A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.

B. Tropical environments are more seasonal.

C. More solar energy is available in tropics.

D. Constant environments promote niche specialization.

E. Tropical environments are constant and predictable.

Choose the correct answer from the options given below:

Hind II always cuts DNA molecules at a particular point called recognition sequence and it consists of:

Bulliform cells are responsible for:

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end:

Which one of the following is not a criterion for classification of fungi?

In the given figure of a stoma in transverse section, which component has thin outer walls and highly thickened inner walls? (Labels A, B, C, D mark four parts; B marks the guard cells.)