General Science - Online Test
Q1. Somaclonal variation appears in plants
Answer : Option D
Explaination / Solution:
Tissue culture is mode of vitro propagation of large number of plantlets in short interval of time. During tissue culture, plants parts are kept in nutrient medium along with required hormones. Some variation arises in plants body although having same genetic traits.
Q2. Primary consumer category in aquatic &/or terrestrial ecosystem will include :
Answer : Option D
Explaination / Solution:
Primary consumers obtain food from producers or autotrophs. In aquatic ecosystem phytoplankton are main prouder and zooplankton are primary consumers along with frog tadpole , snail and tortoise.
Q3. Public expenditure can be Development and Non-development
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. The ______________ is that value obtained by summing all elements in a set and dividing by the number of elements.
Answer : Option C
Explaination / Solution:
Mean is defined as the sum of the values of all observations divided by the number of observations.
Q5. The number of people who reside in a particular locality at a particular point of time known as
Answer : Option C
Explaination / Solution:
A population is the number of living things that live together in the same place
Q6.
A truck starts from rest and accelerates uniformly at 2.0 m . At t = 10 s, a stone is dropped by a person standing on the top of the truck (6 m high from the ground). What is the magnitude of velocity (in m ) of the stone at t = 11s? (Neglect air resistance.)
Answer : Option C
Explaination / Solution:
During first 10 , the horizontal component of the velocity is vx = u + at = 0+2x10 = 20 m/s
From 10 to 11 s, the vertical component of the velocity is vy=u + gt = 0 + 10x1 = 10m/s
Relative velocity is,
Q7. The joint present between the carpals is
Answer : Option D
Explaination / Solution:
Many gliding joints are formed in the appendicular skeleton between the carpal bones of the wrist; between the carpals and the metacarpals of the palm; between the tarsal bones of the ankle; and between the tarsals and the metatarsals of the foot.
Q8. Amines are soluble in
Answer : Option C
Explaination / Solution:
Amines are soluble in water due to hydrogen bonding with water.
Q9. A company has developed a GM maize plant which produces high amount of sugar. The right granted to the company because of which others cannot use it is
Answer : Option D
Explaination / Solution:
The right granted to the company or organization of which others cannot use it is called biopatent.
A biological patent is a patent on an invention in the field of biology that by law allows the patent holder to exclude others from making, using, selling, or importing the protected invention for a limited period of time.
This right is given as intellectual right to the company.
Q10. An oxidation number of +1 is found in all their compounds of one of the below given options
Answer : Option A
Explaination / Solution:
Alkali metals have +1 oxidation state.
Because they have only one electron in their outer most shell and by losing that one they can achieve stable configuration, that's why they have +1 oxidation state.
