PCR

Question 1

What are the components of a polymerase chain reaction (PCR) and the processes?

Answer 1

1 - nucleotide, DNA primer, original DNA
2 - Denaturation
3 - Annealing
4 - Extension

Question 2

What does the distance from the DNA ladder mean?

Answer 2

The further the PCR reaction is away from the ladder, the smaller the value (I.e. top 500 bp → 100 bp)

Question 3

What is the difference between fraternal twins and identical twins?

Answer 3

Fraternal twins develop from 2 sets of egg and sperm

Identical twins develop from same egg and sperm AND they are the same sex