The Structures That Help Some Bacteria To Attach To Rocks And /Or Host Tissues Are?
a) Holdfast b) Rhizoids c) Fimbriae d) Mesosomes Answer: c) Fimbriae Explanation: The fimbriae are tubular, hollow surface appendages found... View Article
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A Jawless Fish, Which Lays Eggs In Fresh Water And Whose Ammocoetes Larvae After Metamorphosis Return To The Ocean Is?
a) Petromyzon b) Neomyxine c) Myxine d) Eptatretus Answer: a) Petromyzon Explanation: Petromyzon (Lamprey) is a migratory marine water jawless... View Article
A Childless Couple Can Be Assisted To Have A Child Through A Technique Called Gift. The Full Form Of This Technique Is?
a) Gamete internal fertilization and transfer b) Germ cell internal fallopian transfer c) Gamete intra fallopian transfer d) Gamete inseminated... View Article
Outbreeding Is An Important Strategy Of Animal Husbandry Because It?
a) Is useful in producing purelines of animals. b) Helps in the accumulation of superior genes. c) Exposes harmful recessive... View Article
Which Of The Following Diseases Is Caused By A Protozoan?
a) Influenza b) Syphilis c) Blastomycosis d) Babesiosis Answer: d) Babesiosis Explanation: Disease Babesiosis is caused by Babesia bigemina protozoan.... View Article
Body Having Meshwork Of Cells, Internal Cavities Lined With Food Filtering Flagellated Cells And Indirect Development Are The Characteristics Of Phylum?
a) Mollusca b) Coelenterata c) Porifera d) Protozoa Answer: c) Porifera Explanation: The poriferan body in poriferans is loose mesh... View Article
Golden Rice Is A Genetically Modified Crop Plant Where The Incorporated Gene Is Meant For Biosynthesis Of?
a) Vitamin A b) Vitamin B c) Vitamin C d) Omega 3 Answer: a) Vitamin A Explanation: Golden rice is... View Article
Which Of The Following Is Not A Function Of The Skeletal System?
a) Storage of minerals b) Production of erythrocytes c) Locomotion d) Production of body heat Answer: d) Production of body... View Article
Among China Rose, Mustard, Brinjal, Potato, Guava, Cucumber, Onion And Tulip, How Many Plants Have Superior Ovary?
a) Three b) Four c) Six d) Five Answer: c) Six Explanation: The superior ovary is seen in plants i.e.... View Article
The Wheat Grain Has An Embryo With One Large Shield-shaped Cotyledon Known As.
a) Coleoptile b) Epiblast c) Coleorhiza d) Scutellum Answer: d) Scutellum Explanation: Scutellum is the large persistent cotyledon in the... View Article
Acid Rain Is Caused By Increase In The Atmospheric Concentration Of?
a) O3 and dust b) SO2 and NO2 c) SO3 and CO d) CO2 and CO Answer: b) SO2 and... View Article
Filiform Apparatus Is Characteristic Feature Of?
a) Synergids b) Aleurone cell c) Nucellar embryo d) Generative cell Answer: a) Synergids Explanation: the filiform apparatus are finger-like... View Article
The Body Cells In Cockroach Discharge Their Nitrogenous Waste In The Haemolymph Mainly In The Form Of.
a) Urea b) Calcium carbonate c) Potassium urate d) Ammonia Answer: c) Potassium urate Explanation: The Malpighian tubules keep floating... View Article
Grafted Kidney May Be Rejected In A Patient Due To.
a) Passive immune response b) Innate immune response c) Cell-mediated immune response d) Humoral immune response Answer: c) Cell-mediated immune... View Article
During Biological Nitrogen Fixation, Inactivation Of Nitrogenase By Oxygen Poisoning Is Prevented By.
a) Cytochrome b) Leghaemoglobin c) Xanthophyll d) Carotene Answer: b) Leghaemoglobin Explanation: At the time of Biological nitrogen fixation, leghaemoglobin... View Article
The Cutting Of DNA At Specific Locations Became Possible With The Discovery Of.
a) Probes b) Restriction enzymes c) Selectable markers d) Ligases Answer: b) Restriction enzymes Explanation: The cutting of DNA at... View Article
The Function Of The Gap Junction Is To.
a) Separate two cells from each other. b) Stop substance from leaking across a tissue. c) Facilitate communication between adjoining... View Article
Eutrophication Of Water Bodies Leading To Killing Of Fishes Is Mainly Due To Non-availability Of?
a) Oxygen b) Light c) Essential minerals d) Food Answer: a) Oxygen Explanation: At the time of eutrophication of the... View Article
The Enzyme That Is Not Present In Succus Entericus Is.
a) Lipase b) Maltase c) Nucleases d) Nucleosidase Answer: c) Nucleases Explanation: Succus entericus is intestinal juice that contains lipase,... View Article
The Species Confined To A Particular Region And Not Found Elsewhere Is Termed As.
a) Keystone b) Alien c) Rare d) Endemic Answer: d) Endemic Explanation: The species confined to a specific area and... View Article
