(a) How is VNTR different from probe?

(b) Why genetic code is triplet?

(c) What 5’-end and 3’-end represents?

(a) VNTR (Variable Number of Tandem Repeats) is a type of satellite that shows a high degree of polymorphism, whereas a probe is a radioactive or labeled single-stranded polynucleotide.

(b) Genetic code triplet because three bases are needed for coding one amino acid.

(c) One end of DNA is 5' (five prime) and the other end is 3' (three prime). In deoxyribose sugar molecule, the 5' end represents free phosphate group and 3' end has free -OH group.