Nuclear DNA testing can be performed if we have the (a) of the hair. If we only have the (b) of the hair, testing for mitochondrial DNA is done instead.

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

c) power lifting, will be your answer.

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