List of practice Questions

Which one of the following diseases is completely curable if detected early and treated properly?

"Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated eventually." This statement was given by:

The trophic level that has a certain mass of living material at a particular time is called as:

Match List-I with List-II:

Choose the correct answer from the options given below:

Arrange the following steps involved in the regulation of gene expression in correct sequence.
(A) Processing level
(B) Translational level
(C) Transcriptional level
(D) Transport of mRNA from the nucleus to the cytoplasm
Choose the correct answer from the options given below:

Which one of the following techniques serve the purpose of early diagnosis of diseases?

When the pistils are fused together, this state is called:

Pollination is not carried out by water in -

Identify the structures which have the potency to give rise to all the tissues and organs.

Which one of the following structures is not essential for maturation and motility of sperms?

Identify the agencies which are involved in developing the technology of biogas production.
(A) Khadi and Village Industries Commission
(B) Indian Farmers Welfare Association
(C) Indian Biogas Production Institute
(D) Indian Agricultural Research Institute
Choose the correct answer from the options given below:

Identify the bacteria which can fix atmospheric nitrogen and are free-living in the soil.
(A) Azotobacter
(B) Rhizobium
(C) Azospirillum
(D) Anabaena
Choose the correct answer from the options given below:

Arrange the following steps involved in PCR in the correct sequence.
(A) Amplification
(B) Extension of primers
(C) Primer annealing
(D) Denaturation
Choose the correct answer from the options given below:

Which one of the following microorganisms is used as a cloning vector to deliver the genes of interest into a variety of plants?

Which one of the following organisms has been disarmed and used to deliver desirable genes into animal cells?

Arrange the following steps which are involved in action of Bt toxin proteins on insects in correct sequence.
(A) Conversion of inactive toxin into active one by alkaline pH of the gut of insect
(B) Creation of pores that cause cell swelling and lysis which leads to death of insect
(C) Inactive protoxins is ingested by insect
(D) Activated toxin binds to the surface of midgut epithelial cells of insect
Choose the correct answer from the options given below:

The species confined to a particular region and not found anywhere else is:

Identify the correct reasons for cutting and clearing of Amazon rain forest?
(A) Cultivating soyabeans
(B) Growing wheat and maize
(C) Setting up industries
(D) Conversion to grasslands for raising beef cattle
Choose the correct answer from the options given below:

Which one of the following is a inhibitor genes in lac operon?

The scientist who developed a method for sequencing the DNA fragments was:

Which one of the followings is not a terminator codon?

Select the correct statements regarding Hardy-Weinberg principle.
(A) Sum total of all the allelic frequencies is 1.
(B) Genetic drift affect Hardy-Weinberg principle.
(C) Allele frequencies in a population are stable and is constant from generation to generation.
(D) The gene pool continues changing generation after generation.
Choose the correct answer from the options given below:

Identify the chemicals produced by Calotropis that provide defense against grazers and browsers.

Match List-I with List-II:

Choose the correct answer from the options given below:

In which state/ Union Teritory are the Todas found?