(a) Expand VNTRs and describe its role in DNA fingerprinting
(b) List any two applications of DNA finger printing techniques

Explanation

(a) VNTRs(variable Number tandem repeates) each individual inherits these repeats from his/her parents which is used as genetic markeer s.one half of VNTR alleles of thec hild resembles that of mother and other half the father .The copy number varies from chromosomes to chromosome in an individual .The number of repeat show very high degree of polymorphism
(b) Application of DNA finger printing:
(i) Identify criminals if their DNA from blood hair follide , skin bone , saliva , sperm etc is available in forensic labs
(ii) Determine paternity