Q1.You forget to add Cytokinin the culture medium, there will be very little growth as Cytokinin is essential for
Answer : Option DExplaination / Solution:
Cytokinin is added to culture medium to induce cell division and cell differentiation. If cytokine is not added to culture medium, there will be very little growth in culture.
Q2.Reasons for the Slow progress of land reforms were
Answer : Option AExplaination / Solution:
The major reason for the failure of land reforms were lack of political support, benami transfers and lots of flaws in the land reforms legislation.
Q4.On his first 5 biology tests, Bob received the following scores: 72, 86, 92, 63, and 77. What test score must Bob earn on his sixth test so that his average (mean score) for all six tests will be 80
Answer : Option AExplaination / Solution: N= 5 , Values of all observations = 72+86+92+63+77= 390 i.e. 90 (6 x 80) number less all the observations of Bob’s score. Bob need to score in 6th Test = 90 So that his Sum of the values of all 6 test =480
Q5.Inflation in food items is ___ than in manufactured products
Answer : Option AExplaination / Solution:
There are four causes of inflation in world food prices. They will drive up food prices in the long run. There are also short-term factors that affect supply and demand. Those include the weather, animal diseases and catastrophes.
Answer : Option BExplaination / Solution:
Preventive birth control measure is preventing sperms from entering the uterus. It includes periodic absentee, coitus interrupts etc.
Q10.If the charge on a capacitor is increased by 2 coulomb, the energy stored in it increases by 21%. The original charge on the capacitor (in coulomb) is
Answer : Option BExplaination / Solution: The initial energy of the capacitor of capacitance C and charge Q1 is U1=Q212C.When the charge increases to Q2 the energy of the capacitor U2−U1U1=Q22−Q21Q21Given percentage increase of energyU2−U1U1=0.21 . But Q2−Q1=2;Q2=1.1Q1Solving Q1=20C
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0