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Question : Sterilization refers to the wide range of methods done to overcome microbes. Considering this statement, how the laminar air flow chamber is sterilized to carry out inoculation process in plant tissue culture technique.

Question : Sterilization of tissue culture medium is done by

Question : Steps in DNA fingerprinting are shown below.a. Complete the flowchart given below and answer the following questions Mention the principle behind DNA fingerprinting. c . DNA fingerprinting is a gift to forensic science. Do you agree? Give reason.

Question : Steriisationperiod of treponemapallidum isabout

Question : Stereocilia' are associated with

Question : Steps of PCR.

Question : Stenoid cavity articulates :-

Question : Stems of which plant contain chlorophyll & become flat to carry out photosynthesis ?

Question : Step catalyzed by pacemaker enzyme of EMP pathway is

Question : Stems found in water plants are called

Question : Stem tuber and Root tuber.

Question : Name the plants having stem with joined nodes and hollow internodes.

Question : Stem tuber and Ruberous root.

Question : Stem modified into flattened photosynthetic structure is :

Question : Stem develops from :-

Question : Stem cuttings are frequently used for.........

Question : Stem cuttings are employed in the propagation of

Question : ________stem cells can be extracted and cultured from a early embryo.

Question : Stem cuttings are employed in thepropagation of:

Question : ________Stem cells are derived from the inner cell mass of blastocyst.

Question : Steepness of a slope is called as :

Question : STDs present a major health concern in both industrialised and developing countries.What do you mean by STDs?

Question : STDs present a major health concern in both industrialised and developing countries.Suggest two preventive measures.

Question : STDs present a major health concern in both industrialised and developing countries.Name two STDs.

Question : STDs can be considered as self-invited diseases. Comment.

Question : Statins commercialised as blood cholestrol lowering agent are produced by

Question :STD

Question : Statins are produced by

Question : Static concept of species is given by :-

Question : Statements A: As long as the mother breast feeds the child fully, chances of conception are almost nil. Reason R : During the periodof intense lactation , amenorrhea does not occur.

Question : Statement P: In HIV, genetic material is DNA. Statement Q : AIDS damages immune system and it is a fatal disease.

Question : Statement (I): The first invaded plants in a barren area are called as pioneers. Statement (II): Marsh meadow stage of hydrosere succession is also called as amphibious stage.

Question : Statement-II:Hormonal action is characterized by amplification of out put statement-II :Hormones are bio-catalysis

Question : Statement-I:Adrenal medulla is not essential for life Statement-II :Nor epinephrine is also secreated by neurons of sympathetic divison

Question : Statement - I : The largely tropical Amazonian rain forest in North America has the greatest biodiversity on Earth. Statement - II : Amazon forest is home to more vertebrates than invertebrates.

Question : Statement-I (S-I):hyposecrection of alsosterone results in low blood pressure. Statement -II (S-II):hyposecretion of Aldosterone leads to elevated potassium (K+),decreased sodium (Na+) in the blood and dehydration

Question : Statement-I : Rohu, Calbasu, Catla, Magur are edible fresh water fishes. Statement-II: Hilsa, Eel, Salmon, Sardine Promphret are edible marine fishes.

Question : Statement-I: Red blood cells burst when placed in water. Statement-II: Due to the phenomenon of osmosis water enters into red blood cells.

Question : Statement-I: Reproduction is the process by which living organisms produce young ones of their species. There are different forms of reproduction. Statement-II: Sex organs, male and female, are mandatory for reproduction.

Question : Statement I : Phytoplankton produce most of the organic carbon in the ocean.Statement II : Algae are producedin the cold waterbiome.

Question : Statement-I: Oxidation in our body cells releases dangerous free radicals. Statement-II: Our body itself produces antioxidants to neutralise harmful free radicals.

Question : Statement-I: Human beings have 23 pair of chromosomes, one of which is the sex chromosomes and the remaining 22 autosomes. The X-linked diseases are related to mutations on a sex chromosomes. Statement-II: Colour blindness results from a mutation in X-chromosome.

Question : StatementI : Growthof plantsis smooth with a complete fertilizer. Statement II : A complete fertilizer always contains N, P, K.

Question : Statement I: Edwards syndrome in more common is female offspring. Statement II: Majority of children with the syndrome die during foetal stage

Question : Statement-I :Erythropoietin is produced from the JG cells of kidney in response to high blood volume Statement II:Erythropoietin stiulates erythroclasia.

Question : Statement-I : During oogenesis the 1st meiotic division occurs in secondary oocyte. Statement-II : Diploid secondary oocyte gives rise to haploid second polar body and ovum.

Question : Statement I: Biodiversity loss is now one of the world's most pressing crisis. Statement II: Lower diversity in a species leads to non-uniformity. Choose the correct option from below.

Question : Statement I : Diplo-haplontic or haplo-diplontic life cycle is characterized by the existence of a sporophyte ae wall as a gametophyte. Statement II : Fungi have a haplo-diplontic life cycle .

Question : Statement-I Boy/girl who is blind by birth attains sexual maturity early Statement-II:Darkness stimulate the release of melatonin