Answer: The replication process begins in specific locations known as replication origins. Replication takes place inside a small opening in the DNA known as a Y-shaped replication fork (uncoiling of DNA is by some enzymes eg Helicase and topoisome rase), DNA dependent DNA polymerase catalyses nucleotide polymerization in the 5′ – 3′ directions. Deoxyribonucleotides serve as substrates and provide energy for the process. New strands created on the 3′-5′ template are continuous, while those formed on the 5-‘3’ template are discontinuous. The discontinuously formed fragments are united by the enzyme DNA ligase.
Explain the mechanism of DNA replication. Highlight the role of enzymes in this process.
Explain the mechanism of DNA replication. Highlight the role of enzymes in this process.
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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.