Match List-I with List-II

List-I (Products)	List-II (Microorganisms)
(A) Wine or beer	(I) Penicillium notatum
(B) Swiss Cheese	(II) Aspergillus niger
(C) Antibiotic	(III) Propionibacterium sharmanii
(D) Citric Acid	(IV) Sachharomyces cerevisiae

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Identify the incorrect statement about genetically modified plants.

Match List - I with List - II.

LIST I (Causal Agent)	LIST II (Disease)
(A) Salmonella typhi	(I) Typhoid
(B) Streptococcus pneumoniae	(II) Pneumonia
(C) Rhino Viruses	(III) Common cold
(D) Plasmodium	(IV) Malaria

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The rate of biomass production is expressed in terms of __________ to compare the productivity of different ecosystems.

Who gave the 'chromosomal theory of inheritance'?

In eukaryotes, RNA polymerase III transcribes:
(A) tRNA
(B) 5.8S rRNA
(C) 5srRNA
(D) snRNA
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Read the following passage carefully and answer the given questions
The separated DNA fragments can be visualized only after staining the DNA with ethidium bromide followed by exposure to UV radiation. Bright orange colored bands of DNA in ethidium bromide stained gel exposed to UV light can be seen. The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece. This step is known as elution. The DNA fragments purified in this way are used in constructing recombinant DNA by joining them with a cloning vector.
The natural polymer used in the agarose gel is extracted from:

Arrange the following in the order of their occurrance.
(A) Spermatids are transformed into spermatozoa
(B) Spermatogonia are multiplied by mitotic division
(C) Sperms are released from seminiferous tubules by the process of
spermiation
(D) Sperm heads are embedded in sertoli cells
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A measure of an average yearly growth of an investment over a certain time period when returns are reinvested is

Some strains of Bacillus thuringiensis produce toxic proteins that do not kill:

Arrange the following compounds in the decreasing order of reactivity towards Sn1 reaction
(A) (Ph)3C-1
(B) (Ph)3C-Br
(C) (Ph)3C-Cl
(D) (Ph)3C-F
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Read the passage carefully and answer the questions given along
Our immune system plays the major role in preventing diseases when we are exposed to disease-causing agents. Immunity is of two types: (i) Innate immunity and (ii) Acquired immunity. The human immune system consists of lymphoid organs, tissues, cells and soluble molecules like antibodies. The immune system also plays an important role in allergic reactions, auto-immune diseases and organ transplantation. The primary lymphoid organs are bone marrow and thymus. The secondary lymphoid organs are spleen, lymph nodes, tonsils, Peyer's patches of small intestine and appendix. There is lymphoid tissue also located within the lining of the major tracts (respiratory, digestive and urogenital tracts) called mucosa associated lymphoid tissue (MALT). It is important to note that HIV/AIDS is not spread by mere touch or physical contact; it spreads only through body fluids. AIDS has no cure, prevention is the best option. Adolescence is accompanied by several biological and behavioural changes and surveys and statistics show that use of drugs and alcohol has been on the rise especially among the youth. Factors associated with drug and alcohol abuse among adolescents are a child's natural curiosity, stress, the perception among youth that it is 'cool' or progressive to smoke, media exposure and an unstable or unsupportive family structures and peer pressure. It is best to identify the situations that may push an adolescent towards use of drugs or alcohol, and to take remedial measures well in time.
Find the incorrect statement about human health and disease.

The steps of PCR (Polymerase Chain Reaction) are given below. Arrange them in a correct sequence.
A. Extension of primers
B. Denaturation of DNA fragments by heating
C. Amplified DNA fragments
D. Annealing of primers
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