How many fragments will be generated if you digest a linear DNA molecule with a restriction enzyme having four recongnition sites on the DNA?

How many fragments will be generated if you digest a linear DNA molecule with a restriction enzyme having three recognition sites?

How many fragments will be generated on the digestion of a closed circular DNA molecule with a restriction enzyme having six recongnition sites on the DNA ?

The role of restriction enzymes in DNA technology is to

DNA fragments cut by restriction enzyme can be separated by

The end of fragments of DNA molecule are sticky due to :

The enzyme used to cut the DNA molecule is :

How restriction enzymes are used for removing sections of DNA from a chromosome?