Answer:
A water molecule is released during polymerization, which helps in the formation of a bond, and it is added during the break down of a polymer, which helps in breaking the bond.
Answer:
I think it is Physical change
Answer:
Option). It permits hydrogen bonds between DNA strands to dissociate.
Explanation:
PCR (polymerase chain reaction) techniques can bed defined as a technique, which is used for in vitro amplification of sample DNA. It is made up of three steps, denaturation, primer annealing, and extension.
The first step in PCR is heating of sample DNA to denature the double stranded DNA by breaking hydrogen bonding present between bases of double stranded DNA.
Due to this, double strands of DNA get separated and provide templates for synthesis of daughter DNA strands.
Thus, the correct answer is second option.
The higher the surface area of a particle the higher the weathering time
Answer:
Radio waves, microwaves, infrared and visible light can all be used for communication.
