Answer: XX-XY, ZX-ZZ, ZZ-ZO, and XX-XO are the four fundamental combinations discovered. The grasshopper’s sex determination is of the XX-XO type. Females have two copies of the sex chromosome, which is represented by XX, whereas males only have one copy of the chromosome, which is represented by XO.
Birds’ sex determination differs from that of humans. The Z and W sex chromosomes determine the sex of birds. Female birds are heterogametic, meaning they have chromosomes of the ZW type. Male birds are homogametic, with chromosomes of the ZZ type. The feminine determining qualities are found on the W chromosome.
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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.