Fill in the blanks
(a) ______ beetle with red and black markings is useful in controlling aphids.
(b) Species specific narrow spectrum insecticidal applications are shown by ______ .
(c ) In paddy fields ______ serve as an important biofertilisers.

Mark the incorrect statement about Nucleopolyhedroviruses. (a) They are species specific (b) They have narrow spectrum insecticidal applications (c) They are nucleoprotein particle (d) They have negative impacts on plants, mammals, fishes and on non target insects also

Fill in the blanks: A. Chemical _______ and ___________ are the sources of widespread pollution. B. Spores of Bacillus ___________ Bacillus _________ Produce insecticidal_______Protein. C. Biofertilisers promote plant growth and protect plants from soil _______ D. Mycorrhizae help in solubilisation of ________ which is present in soil in the insoluble forms E. Rhizobia form root ______ in ________ crops and some_______ form symbiotic association with the fern Azolla. F. Different varieties of cheese are known by their characteristic___________ G. Single cell protein (SCP) provides a valuable _____ rich supplement in _______ diet. H. The sewage water is treated till the BOD is found to be_____ I. The bacteria responsible for production of biogas are collectively called _______ J. ______ grwo in milk and convert it to curd.

Read the following statements and find out the incorrect statements. a. Majority of flowering plants use a range of animals as pollinating agents. b. Bees, butterflies, flies, beetles wasps, ants, moth, birds (sunbirds and humming birds) and bats are the common pollinating agents. c. Among the animals, insects particularly bees are the dominant biotic pollinating agents. d. Even larger animals such as some primates (lemurs), arboreal (tree dwelling) rodent, or even reptiles (gecko lizard and garden lizard) have also been reported as pollinators in some species. e. Often flowers of animal pollinated plants are specifically adapted for a particular species of animal.

Read the following statements and find out the incorrect statements. a. Majority of flowering plants use a range of animals as pollinating agents. b. Bees, butterflies, flies, beetles, wasps, ants, moth, birds (sunbirds and humming birds) and bats are the common pollinating agents. c. Among the animals, insects particularly bees are the dominant biotic pollinating agents. d. Even larger animals such as some primates (lemurs), arboreal (tree dwelling) rodent, or even reptiles (gecko lizard and garden lizard) have also been reported as pollinators in some species. e. Often flowers of animal pollinated plants are specifically adapted for a particular species of animal.

Fill up the blanks. I)...A... are plants, bacteria, fungi and animals whose genes have been altered by manipulation. II) ...B... forms protein crystals which contains a toxic insecticidal protein. III) By using ...C... vectors, nematode specific genes were introduced into the host plants which produced both sense and antisense RNA in the host cells. IV) RNA interference (RNAi) technique has been devised to protect the plants from nematode is silenced by ...D... produce by the host plant. Here A lo D can be identified as

Fill up the blanks. I)...A... are plants, bacteria, fungi and animals whose genes have been altered by manipulation. II) ...B... forms protein crystals which contains a toxic insecticidal protein. III) By using ...C... vectors, nematode specific genes were introduced into the host plants which produced both sense and antisense RNA in the host cells. IV) RNA interference (RNAi) technique has been devised to protect the plants from nematode is silenced by ...D... produce by the host plant. Here A lo D can be identified as

Fill in the blanks: a) The ………….. Used as a carrier for transferring into a suitable host is called vehicle DNA. b) Genetic engineering is also known as ……….DNA technology. c) Large scale production of biotechnological products involves use of ............... d) The source DNA and the vector DNA are cut at specific points with the help of ..............endonucleases. e) DNA fragments are ligated with the help of enzymes..........

Fill in the following blanks with suitable words: (a) The form of carbon which is know as black lead is …….. (b) The form of carbon which is used as a lubricant at high temperature is….. (c ) compounds of carbon with hydrogen alone are called ....... (d) C_(n)H_(2n) is the general foumula of .................... hydrocarbons. (e ) Hydrocarbons haveing the general formula C_(n)H_(2n-2) are called ................... (f) Ethyne and ethyne are examples of ....................hydrocatbons. (g) Ethyne has .................. carbon hydrogen single bonds. (h) carbon compounds have usually ................. melting p[oints and boiling points beacuse they are.................. in nature. (i) The prperty of carbon atoms to form along chains in compounds is called........... (J) The general formaula C_(n)H_(2n) for cycloalkanes is the same as that of ................ (k) The IUPAC name of ethylene is .................... (l) The IUPAC name of acetyleneis ........................