List of practice Questions

Arrange the following steps which are involved in the process of recombinant DNA technology in correct sequence.
(A) Fragmentation of DNA by restriction endonucleases
(B) Transferring the recombinant DNA into the host
(C) Ligation of desired DNA fragment into a vector
(D) Isolation of DNA
Choose the correct answer from the options given below:

Identify the Bt toxin gene which controls the corn borer.

Select the incorrect statement about the insulin hormone produced by rDNA technique.

Intine of the pollen grain is made up of:

Identify the organism whose genome has not been sequenced.

Which one of the following statements is the correct fact about human genome project?

Arrange the following stages of human evolution in correct chronological order.
(A) Australopithecines
(B) Homo erectus
(C) Ramapithecus
(D) Homo sapiens
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Which one of the given terms states that mutations caused speciation?

Match List-I with List-II:

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Match List-I with List-II:

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Match List-I with List-II:

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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:

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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
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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
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Identify the bacteria which can fix atmospheric nitrogen and are free-living in the soil.
(A) Azotobacter
(B) Rhizobium
(C) Azospirillum
(D) Anabaena
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Arrange the following steps involved in PCR in the correct sequence.
(A) Amplification
(B) Extension of primers
(C) Primer annealing
(D) Denaturation
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Which one of the following microorganisms is used as a cloning vector to deliver the genes of interest into a variety of plants?