Biology- One-Liners- for various competitive examinations

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Biology- One-Liners- for various competitive examinations

Thank You all for landing on the page of Biology. The subject Biology plays an important role in various competitive examinations conducted by various organizations. Biology One-Liners help a lot.

The subject plays an important role in various competitive examinations conducted by various organizations. Biology bits help a lot.


1- The part of the brain which controls the emotional reactions in our body is hypothalamus. The brain’s limbic system controls emotional expression through hypothalamus.


2- The bark of Cinchona yields drugs. 


3-An organism that transmits disease from one individual to another is called.
a-Hybrid
b-Clone
c-Vector.
d-Fragment


4- This endocrine gland is found in Chest cavity.
a-Thymus Gland.
b-Thyroid Gland.
c-Pineal Gland.
d-Adrenal Gland


5- The basic unit of biosystematics is
a-Ecotype.
b-Phenotype.
c- Florotype
d- Genotype.


6-This is a form of sexual reproduction.
a- Hermaphroditism.
b-Fragmentation.
c-Budding.
d-Fission.


7-Maximum Oxygen is available from
a-Green Forests
b-Phytoplanktons.
c-Grasslands.
d-Deserts


8-Chromosome designation of Turner syndrome is
a-44A+XO
b-44A+XYY.
c-44A+ XXY.
d-44A+XXX


9-Approximate number of skeletal muscles is
a-700
b-206
c-200
d-500


10-BOD stands for
a- Biochemical Oxygen Demand.
b-Biological Oxygen Demand.
c-Biotic Oxidation Demand.
d-Biological Oxidation Demand.


11-Commercially Valued Cork is obtained from
a-Cycas
b-Ficus
c-Cedrus Deodara
d- Quercus spp


12-Minamata disease is caused by pollution of water by
a-Methyl Isocyanate
b-Mercury
c-Tin
d-Lead


13-Amino Acids are required for the synthesis of
a- Carbohydrates
b-Lipids
c-Alkaloids
d-Proteins


14-If Xylem and Phloem are arranged in a same radius, such a vascular bundle is called
a-Radial
b-Concentric
c-Collateral
d-Bi-collateral


15- Christmas Factor is involved in
a- Digestion.
b-Respiration.
c-Excretion.
d-Blood Coagulation.


Ans-3-c; 4-a; 5-a; 6-a; 7-b; 8-a; 9-a; 10-b; 11-d; 12-b; 13-d; 14-c; 15-d

Explanations- * Cinchona is a tree. The bark is used to make medicine. Cinchona is used for increasing appetite, for treating bloating, and other stomach problems. This species is also used for blood vessel disorders including hemorrhoids, varicose veins, and leg cramps.

  • Clone- It is a plant or animal that has the same genes as the original from which it was produced.

  • Minamata disease is a disease of the central nervous system. It is a neurological syndrome caused by severe mercury poisoning. Ataxia, numbness in the hands and feet, general muscle weakness, narrowing of the field of vision are some of the symptoms. Minamata disease was first discovered in Minamata city in Kumamoto prefecture, Japan, in 1956.


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