Category: VBQs

Very Short Answer Type Questions Question.  Why does ‘Swiss cheese’ have big holes?– Thinking ProcessDifferent varieties of bakery like bread and cheese are known by their characteristic texture, flavour and taste, the specificity coming from the microbes used.Answer. The large holes in ‘Swiss cheese’ are due to production of a large amount of CO2 by a bacterium named Propionibacterium […]

MULTIPLE CHOICE TYPE QUESTIONS Question. The discovery that led to the development of first antibiotic was made by(a) Jenner(b) Pasteur(c) Fleming(d) Waksman Question. Genetically engineered bacteria have been used in commercial production of(a) Thyroxine(b) Testosterone(c) Human insulin(d) Melatonin Question. Hepatitis B vaccine is(a) First generation vaccine(b) Second generation vaccine(c) Third generation vaccine(d) Interferon Question. Antigens are present(a) […]

SHORT ANSWER TYPE QUESTIONS  Question. Why is Agrobacterium mediated genetic transformation describe as natural genetic engineering in plants?Answer.(i) Agrobacterium tumefaciens pathogen of dicot plants is able to deliver a piece of DNA known as T-DNA to transform normal plant cell into tumour.(ii) Ti plasmid of Agrobacterium tumefaciens has been modified into a cloning vector, which […]

Question. In prophase centrosome which had undergone duplication during interphase, begins to move towards :(a) Same poles of the cell(b) Opposite poles of the cell(c) One towards centre while another towards pole(d) Both towards centre Question. DNA replication is found in :-(a) Mitosis and meiosis-I(b) Mitosis and meiosis-I and meiosis-II(c) Meiosis only(d) Mitosis only Question. G0 (Quiscent) stage […]

MCQs Question. Volvox and Polysiphonia are members of algal class, A and B respectively. Which of the following statement is correct?a. Cellulose and algin are cell wall components of members of A.b. Floridean starch is stored material in B.c. Chlorophyll a, c and fucoxanthin are the photosynthetic pigments found in class A.d. Two unequal flagella […]

Question. Basis of classification according to Whittakera. Cell structureb. Mode of reproductionc. Phylogenetic relationshipd. All of these Question. Which of the following there is no mention in Whittaker’s classification?a. Virusb. Viroidsc. Lichensd. All of these Question. Which of the following organisms were never included in Protista?a. Bacteriab. Red algaec. Slime mouldsd. Mosses Question. Whittaker is famous for […]

Objective Questions Question. In taxonomy the first step is:a. Identificationb. Nomenclaturec. Classificationd. Affinities Question. Which of the following taxonomic categories contains organisms least similar to one another?a Generab. Familyc. Classd. Species Question. The suffix – inae signifies the rank:a. Tribeb. Subtribec. Suborderd. Family Question. Determination of age by counting growth rings falls under:a. Chorologyb. Chronologyc. Dendrologyd. […]

Unit 1: Diversity in the Living World Chapter 1 The Living World Chapter 2 Biological Classification Chapter 3 Plant Kingdom Chapter 4 Animal Kingdom Unit 2: Structural Organisation in Plants and Animals     Chapter 5 Morphology of Flowering Plants Chapter 6 Anatomy of Flowering Plants Chapter 7 Structural Organisation in Animals Unit 3: Cell- Structure and […]

Short Answer Type Questions Question. Name the two type of nutrient cycles existing in nature. Where are their reservoirs present ? State the functions of the reservoirs.Answer : The nutrients are never lost from an ecosystem but are recycled time to time and again indefinitely.Nutrient cycles are of two types :(i) Gaseous cycles : The […]

Multiple Choice Questions Question. Which of the following correctly describes the magnetic field near a long straight current carrying wire?(A) The field consists of straight lines perpendicular to the wire.(B) The field consists of straight lines parallel to the wire.(C) The field consists of radial lines originating from the wire.(D) The field consists of concentric circles centered […]