Top 1000+ Solved Biology (GK) MCQ Questions Answer
Q. Sugarcane plants are usually propagated by vegetative means because -
a. they do not produce seeds
b. it is possible to maintain genetic quality
c. the incidence of disease may be reduced
d. none
Q. The term 'GM food' refers to the food -
a. that grows under genetic measures
b. that is genetically modified
c. that grows under geographical modification
d. with greater glucose metabolism
Q. ‘Why excessive heating and repeated use of cooking oil are most undesirable?
a. The oil vapour can cause indoor pollution
b. Carcinogenic substances like benzpyrene are produced
c. Nutrient value of food is lost
d. Loss and wastage of oil
Q. Flat footed camels can walk easily in sandy deserts because -
a. pressure on the sand is decreased by increasing the area of the surface in contact
b. pressure on the sand is increased by increasing the area of the surface in contact
c. pressure on the sand is decreased by decreasing the area of the surface in contact
d. pressure on the sand is increased by decreasing the area of the surface in contact
Q. A large number of identical plants can be obtained in a short span of time through -
a. large number of seeds of a single plant
b. stern cuttings
c. tissue culture technique
d. hydroponics method
Q. Full form of the infectious disease SARS is -
a. Syndrome Associated with Respiratory Symptoms
b. Severe Acute Respiratory Syndrome
c. Severe Asthmatic Respiratory Syndrome
d. Syndrome Alarm on Respiratory System
Q. In test-tube babies, the -
a. Ovum is fertilized and developed in test- tubes
b. Ovum is fertilized in the test-tubes and developed in uterus
c. Ovum is fertilized in the uterus and developed in test-tubes
d. Ovum is developed without fertilization in test-tubes
Q. Human beings have two ears because two ears help -
a. to judge the direction of sound
b. to hear even a feeble sound
c. to enjoy music better
d. to distinguish between two kinds of sounds arriving at the ears in opposite directions
Q. Cultivable land is defined as
a. land actually under crops
b. cultivable waste land + fallow land
c. old fallow lands 4- current fallow lands
d. total fallow lands + net sown area
Q. Which one of the followings is/are correct definition of Habitat?
a. A complex of several types of communities
b. Natural environment of a living organism
c. The place where one would go find the particular living organism.
d. Natural environment of a living organism and the place where one would go find the particular living organism.
Q. In bio fortification technique plant breeders use breeding to overcome –
a. Loss due to insect pests
b. Decrease in food production
c. Deficiencies of micronutrients and vitamins
d. Loss due to plant diseases
Q. The five key indicators of global climate change of our planet are
a. Antartic Sea ice, Oxygen, Rain-fall, Drought and Sea level
b. Sea-level, Rising temperatures, Rainfall, Nitrogen and Arctic Sea ice
c. Arctic Sea ice, Carbon dioxide, Global Temperature, Sea level and Land ice
d. None of these
Q. Green House Effect' means
a. Pollution in houses in tropical region
b. Prevention of ultraviolet radiation by the ozone layer
c. Trapping of solar energy due to atmospheric gases
d. Damage to green painted buildings
Q. The presence of air bubble in blood stream is dangerous to life because-
a. Air combines with blood forming a complex
b. The flow of blood increases manifold
c. The flow of blood is obstructed
d. The pressure of blood increases manifold
Q. In human body, ligaments are made up of
a. white fibres and some yellow elastic fibres
b. white fibres only
c. yellow fibres only
d. yellow fibres and muscle fibres