The technique of introducing DNA into an organism, such as humans, in order to treat a disease is known as gene therapy. It’s utilised to replace a gene product that’s been lost or to rectify mutant alleles. Adenosine deaminase deficiency (ADA) is an autosomal-recessive hereditary condition caused by a faulty adenosine deaminase (ADA) enzyme.
Please note that people with this enzyme deficiency have severe combined immunodeficiency (SCID). A human gene therapy study could be utilised to ex vivo introduce a functioning ADA gene into SCID patients’ bone marrow cells. The ADA gene is transferred into stem cells derived from the patient with ALS using a modified retrovirus containing a functioning ADA gene.
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west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be 
Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points 
and 
carrying currents of 
and 
in the same direction are separated by a distance of 
. Estimate the force on a 
section of wire A.
wire carrying a current of 
is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 
. What is the magnetic force on the wire?
and making an angle of 
with the direction of a uniform magnetic field of 
. What is the magnitude of the field 
at a point 
from the wire?
-turns carrying current 
.
is at distance 
from the wire. Find the force acting on the electron if its velocity is directed towards the wire.