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DNA duplex strands are bonded by hydrogen bonds. On heating the hydrogen bonds break. At specific temperature called Tm half of the double helix is broken down (separated from each other) while the other half remains as such. This temperature can be determined , also the GC bond is stronger than AT so in such cases the temperature is more if the helix has more GC bonds.
What else can I help you with?
What temperature melts a solid?
The temperature at which intermolecular forces push the molecules apart
Which element melts at the lower temperature-oxygen or mercury?
Mercury has a lower melting point compared to oxygen. Mercury melts at -38.83°C, while oxygen melts at a much lower temperature of -218.79°C.
What happens to sulfur when you heat it in a test tube?
When sulfur is heated in a test tube, it melts into a yellow liquid. As the temperature increases, the liquid sulfur will eventually start to boil, releasing a purple vapor. Upon cooling, the sulfur vapor will condense back into solid yellow sulfur.
When a substance melts the temperature of the substance?
it decreases.
What is the temperature of a melting lamp?
The temperature at which a lava lamp melts can vary depending on the specific type of wax used inside. Generally, the wax in a lava lamp melts at around 130-150 degrees Fahrenheit (54-65 degrees Celsius), which allows it to flow and create the characteristic lava lamp effect.
How Can Solid melts without heating?
i think through temperature which is present in our environment.
What is the nature of a solid when it is heated it melts at a definite temperature and further heating produces black solid and a gas?
carbon
Why is the salol a crystalline solid?
It's made up of crystalls and it melts at its specific temperature.
Does the temperature of ice increase or decrease when it melts?
The temperature of ice increases when it melts.
How does heating a solid turn into a liquid?
it melts
How does liquids turn into a solids?
To turn from a solid to a liquid it must reach it's melting point by heating up. Examples: ice to water, rocks to magma. Every thing melts at a different temperature.
Can you specify the temperature-composition points at which all eutectics occur?
Eutectics occur at specific temperature-composition points where a mixture of substances melts at the lowest possible temperature.
What is caramelise?
Caramelise is heating sugar until it melts.
Why a DNA duplex melts at a specific temperature (Tm) on heating?
At a certain temperature (around 50oC) the hydrogen bonds between nitrogenous bases on each strand of the double helix (or DNA duplex) become unstable and broke apart and therefore both strands tend to separate. On the other hand, the stability of the DNA double helix, and hence its Tm, depends on several factors, including the nature of the solvents, the identities and concentrations of the ions in solutions, and the pH. Tm also increases linearly with the mole fraction of G-C base pairs, which indicates that triple hydrogen-bonded G-C base pairs are more stable than doubly hydrogen-bonded A-T base pairs.
The temperature in which a solid melts is called its?
The temperature at which a solid melts is called its melting point.
What is the temperature at which ice melts?
Ice melts at a temperature of 0 degrees Celsius or 32 degrees Fahrenheit.
Do energy melts ice?
Yes, ice is melted by heating.
