Please wait...

NEET Test 122
Result
NEET Test 122

  • /

    Score

  • -

    Rank
Time Taken: -
  • Question 1/10
    4 / -1

    The type of isomerism shown by the complex 

    Solutions

    In the given complex, the CN of Co is 6, and the complex has octahedral geometry.

    Hence, the correct option is (A).

     

  • Question 2/10
    4 / -1

    Select the correct sequence of steps in DNA fingerprinting involving southern blot hybridization using VNTR.

    i. Hybridisation using labelled VNTR probe 

    ii. Isolation of DNA

    iii. Transferring (blotting) of DNA fragments to synthetic membranes, such as nitrocellulose or nylon 

    iv. Detection of hybridised DNA fragments by autoradiograph

    v. Separation of DNA fragments by electrophoresis 

    vi. Digestion of DNA by restriction endonucleases

    Solutions

    A Southern blot is a method used in molecular biology for the detection of a specific DNA sequence in DNA samples. Southern blotting combines the transfer of electrophoresis-separated DNA fragments to a filter membrane and subsequent fragment detection by probe hybridization.

    The correct sequence will be- ii, vi, v, iii, i, and iv

    Hence, the correct option is (D).

     

  • Question 3/10
    4 / -1

    Which of the following plant genera has coralloid root?

    Solutions

    Cycas or Cycads provide fixed carbon and a stable environment to the cyanobacteria in exchange for fixed nitrogen. These cyanobacteria are endosymbionts, living within the roots of Cycads. Within the coralloid root is the cyanobacterial zone, which is the region inhabited by cyanobacteria.

    Hence, the correct option is (A).

     

  • Question 4/10
    4 / -1

    The magnetic field at a distance r from a long wire carrying a current i is 0.4 tesla. The magnetic field at a distance 2r is:

    Solutions

    When r is doubled, the magnetic field becomes halved.

    Now the magnetic field will be 0.2 tesla.

    Hence, the correct option is (A).

     

  • Question 5/10
    4 / -1

    The enzyme enterokinase helps in conversion of:

    Solutions

    The enzyme enterokinase helps in conversion of inactive trypsinogen into active trypsin.

    Hence, the correct option is (B).

     

  • Question 6/10
    4 / -1

    Diameter of plano-convex lens is 6 cm and thickness at the centre is 3 mm. If speed of light in material of lens is 2 × 108 m/s, the focal length of the lens is:

    Solutions

    The lens is as shown in the figure.

    Hence, the correct option is (C).

     

  • Question 7/10
    4 / -1

    An electric pump is used to fill an overhead tank of capacity 9 m3 kept at a height of 10 m above the ground. If the pump takes 5 minute to fill the tank by consuming 10 kW of power, the efficiency of the pump should be (Take g=10 ms−2 )

    Solutions

    Given,

    The volume of water to be raised = 9 m3

    Since we know that

    Density of water = 1000kgm−3

    So, mass of water to be raised

    Mass = 1000 × 9

    Mass = 9000 kg

    So, the potential energy change for 9000 kg of water to be raised to a height of 10 m above the

    ground is given by;

    PE = 9000 × 10 × 10

    PE = 9 ×105J

    Since,

     

  • Question 8/10
    4 / -1

    The phenomenon of sound propagation in the air is:

    Solutions

    Sound is a mechanical wave. It requires a medium for transmission. There is no transmission of sound in a vacuum. The transmission of sound in the air is in the form of a longitudinal wave. The transmission of sound in the air is in the form of compression and deceleration caused by the vibration of air particles. So, the phenomenon of sound propagation in the air is also an adiabatic process.

    Hence, the correct option is (C).

     

  • Question 9/10
    4 / -1

    An a-particle of energy 5MeV is scattered through 180∘ by a fixed uranium nucleus. The distance of the closest approach is of the order of

    Solutions

    At closest approach, all the kinetic energy of the a-particle will converted into the potential energy of the system, K. E. = P . E

     

  • Question 10/10
    4 / -1

    Auxin inhibits the growth of:

    Solutions

    The first discovered plant growth hormone is auxin that plays an important role in the growth and development of plants. The bud which is present on the apex of the stem and root is called apical bud that produces a hormone i.e. auxin that helps in the growth of the shoot tip and root tip but inhibits the growth of the lateral bud. But if the plant is cut then auxin concentration in the plants gets decreased that lead to the development of lateral axillary bud.

    Hence, the correct option is (B).

     

User Profile
-

Correct (-)

Wrong (-)

Skipped (-)

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Click on Allow to receive notifications
×
Open Now