Why is it not possible for an alien DNA to become part of chromosome anywhere along its length and replicate?

What happens if a bar magnet is cut into pieces along its length?

The length of a magnet is large compared to its width and breadth. The time period of its oscillation in a vibration magnetometer is T. The magnet is cut along its length into three parts and these parts are then placed together. The time period of this combination will be

Is it possible to design a rectangular mango grove whose length is twice its breadth, and the area is 800 m^2 ? If so, find its length and breadth.

Resistivity of the material of a conductor of uniform cross-section varies along its length as rho=rho_(0)(1+alpha x) . Find its resistance if its length is L and area of cross-section is A.

What happens if abar magnet is cut into two equal pieces:along its length.

Is it possible to design a rectangular park whose length exceeds its breadth by 5 metres. The area of the park is 594 sq. metres ? If so, find its length and breadth.

How does the pole strength and magnetic moment of each part of a bar magnetic change if it is cut into two equal pieces along transverse length.