00:01
The question is divided into five parts.
00:02
In the first part of the question, it is asked about what makes sense to compare dna to a fingerprint.
00:09
So basically, fingerprint are the impression of the pattern formed by papillary or the epidermal ridges of the fingerprint.
00:16
So basically fingerprinter is an impression of epidermal ridges.
00:21
This ridge pattern appear between 12 to 16 weeks of intrauterine life and exist in different pattern like loop, hole, spiral, etc.
00:30
This pattern are non -inherited and different even in identical twins.
00:34
Enter's fingerprinting pattern are distinctive and permanent in individual.
00:39
So the key term for the fingerprint is that they are not inherited and they are distinctive.
00:46
Now, why? what is the significance for dna to compare as compared with the fingertips? is that by dna fingerprinting or profiling the short representative sequence demonstrating hyper -valiability from a person to person called a satellite dna, which show high degree of variation called variable number tandem repeats, vntrs or mini -satellite are found and compared which is unique to each and every person on earth.
01:16
So here you can see that in the dna fingerprinting as the dna have these mini -satellites which are known as vntr variable number tandem repeats, they are very different in each person and that's provide each person and unique character in terms of identification.
01:36
So that's why it is very useful for dna printing and this makes the sense to compare the dna as fingerprint.
01:47
Now moving to the second part of the question is about the pcr.
01:52
See pcr is polymeric chain reaction or pcr technically means polymarous chain reaction.
01:59
It has many uses in the forensic medicine.
02:01
It is used in a dna analyzing and profiling.
02:04
Bair, it's deducted.
02:06
Bhae, i'm, you know what's up, do youp ird, because i.....