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biology MCQs with Explanations - Chapter-wise Practice Questions
Q. 3 of Quiz- (Que-ID : 3071)
The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Q. 25 of Quiz- (Que-ID : 3343)
Which of the following diseases is transmitted by the bite of the female mosquito vector ?
- Filariasis
- Amoebiasis
- Typhoid
- Pneumonia
Q. 15 of Quiz- (Que-ID : 3058)
A characteristic of drupe is
- fleshy seed coat
- stony pericarp
- stony mesocarp
- stony endocarp
Q. 23 of Quiz- (Que-ID : 3016)
A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
Q. 24 of Quiz- (Que-ID : 2967)
Amino acids which are specified by single codons are
- phenylalanine and arginine
- tryptophan and methionine
- valine and proline
- methionine and aroinine
Q. 2 of Quiz- (Que-ID : 3520)
In Ozone Degradation which element acts as catalyst?
- Chlorine
- Flurine
- Oxygen
- Potassium
Q. 5 of Quiz- (Que-ID : 3298)
Which one is not a vestigia organ ?
- Wings of kiwi
- Coccyx in man
- Pelvic girdle of python
- Flipper of seal
Q. 18 of Quiz- (Que-ID : 2786)
the phylogeneticsystem of classification was put forth by
- Theophrastus
- George Bentham and Joseph Dalton Hooker
- Carolus Linnaeus
- Adolf Engler and Karl Prantl
Q. 7 of Quiz- (Que-ID : 3375)
Biofertilisers are the living organisms which
- bring about soil nutrient enrichment
- maximise the ecological benefits
- minimise the environmental hazards
- all of these
Q. 16 of Quiz- (Que-ID : 2859)
Spiny or sticky pollen grains and large, attractively coloured flowers are associated with
- hydrophily
- entomophily
- ornithophily
- anemophily
Q. 15 of Quiz- (Que-ID : 3333)
Passive immunity can be conferred directly by
- vaccines
- antitoxins
- colostrum
- both (b) & (c)
Q. 23 of Quiz- (Que-ID : 3316)
Amphibians were dominant during _______ period.
- Carboniferous
- Silurian
- Ordovician
- Cambrian
Q. 6 of Quiz- (Que-ID : 3324)
Which of the following pathogens causes whooping coough ?
- Legionella spp.
- Burcella melitensis
- Vibrio cholerae
- Burcella melitensis
Q. 18 of Quiz- (Que-ID : 3436)
Bt toxin is :
- intracellular lipid
- Intracellular crystalline protein
- Extracellular crystalline protein
- Lipid
Q. 13 of Quiz- (Que-ID : 3231)
certain plants called as runners can be easily propagated. This is due to the fact
- they are numerous in numbers
- they store the ready food
- they lie horizontally on the soil
- they can produce adventitious roots quite readily at the nodes
Q. 16 of Quiz- (Que-ID : 3059)
Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as
- TCA pathway
- Glycolysis
- Hms pathway
- Glycolysis
Q. 4 of Quiz- (Que-ID : 3322)
Typhoid fever in human beings is caused by
- Plasmodium vivax
- Trichophyton
- Salmonella typhi
- Rhinoviruses
Q. 15 of Quiz- (Que-ID : 2708)
Which joint is present between humerus and pectoral girdle
- Hinge
- Ball and socket
- Pivot joint
- Condyloid
Q. 7 of Quiz- (Que-ID : 2620)
Which enzyme is responsible for digestion of milk protein in infants
- Renin
- Rennin
- Proteoses
- None of the above
Q. 6 of Quiz- (Que-ID : 2699)
What are 8,9 and 10th ribs known as
- True ribs
- False ribs
- Floating ribs
- None of the above
Q. 9 of Quiz- (Que-ID : 3002)
The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
- splitting of the centromeres
- splitting of the chromatids
- replication of the genetic material
- condensation of the chromatin
Q. 13 of Quiz- (Que-ID : 3031)
Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Q. 22 of Quiz- (Que-ID : 3015)
Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Q. 19 of Quiz- (Que-ID : 2662)
Every 100ml of deoxy blood delivers approx
- 2ml of co2 to alveoli
- 3 of co2 to alveoli
- 4ml of co2 to alveoli
- 7ml of co2 to alveoli
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