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The expanded form of DDT is
dichloro diphenyl trichloroethane
b)dichloro diethyl trichloroethane
c)dichloro dipyrydyl trichloroethane
d)dichloro diphenyl tetrachloroacetate.
Sugars are technically called carbohydrates, referring to the fact that their formulae are only multiple of C(H2O). Hexoses therefore have six carbons, twelve hydrogens and six oxygen atoms. Glucose is a hexose Choose from among the following another hexose.
Fructose
b)Erythrose
c)Ribulose
d)Ribose
Chipko movement was launched for the protection of:-
Wet lands
b)Grasslands
c)Forests
d)Livestock
'Nif' gene for nitrogen fixation in cereal crops like wheat, jowar etc., is introduced by cloning
Rhizobium meliloti
b)Bacillus thuringiensis
c)Rhizopus stolonifer
d)Agrobacterium tumefaciens
Which of the following is not an objective of animal breeding?
Increasing yield of milk, eggs, meat, wool etc.
b)Improving the desirable qualities of produce
c)Slow growth rate
d)Resistance to various diseases
The dinosaurs which had three horns on head and collared neck
Tyrannosaurus
b)Triceratops
c)Stegosaurus
d)Brachiosaurus
Tubuli recti of seminiferous tubules open into
Epididymis
b)Vasa efferentia
c)Vasa deferentia
d)Rete testis
Which of the following pairs is wrong?
Uricotelic - Birds
b)Ureotelic - Insects
c)Ammonotelic - Tadpole
d)Ureotelic - Elephant
Anion-Cation balance in cells is determined by
Potassium
b)Boron
c)Zinc
d)Chlorine
The longest segment in the leg of cockroach is
coxa
b)femur
c)tibia
d)trochanter
Which of the statements regarding haplontic life cycle is incorrect?
Sporophytic generation is represented only by the one-celled zygote.
b)There is no free-living sporophyte.
c)Mitosis in the zygote results in the formation of haploid spores.
d)The haploid spores divide mitotically and form the gametophyte.
The process by which a piece of DNA is introduced in a host bacterium is
Transduction
b)Transfer
c)Transformation
d)Translocation
An autoimmune disease is
Multiple sclerosis
b)Myasthenia gravis
c)Rheumatoid arthritis
d)All of these
Filiform apparatus is characteristic of
Nucellar embryo
b)Aleurone cell
c)Synergids
d)Generative cell
Who discovered salivary gland chromosomes?
Balbiani
b)Waldeyer
c)Du Praw
d)Porter
Agranulocytes are
lymphocytes and monocytes
b)eosinophils and basophils
c)lymphocytes and eosinophils
d)basophils and monocytes
Match the following columns.
Column I | Column II |
---|---|
A. Malacology | 1. Reptiled |
B. Pomology | 2. Fungi |
C. Mycology | 3. Fruits |
D. Oinithology | 4. Molluscs |
5. Birds |
A | B | C | D |
---|---|---|---|
1 | 2 | 3 | 5 |
A | B | C | D |
---|---|---|---|
5 | 4 | 2 | 1 |
A | B | C | D |
---|---|---|---|
4 | 3 | 2 | 5 |
A | B | C | D |
---|---|---|---|
4 | 3 | 1 | 5 |