The first step that is involved in the hybridization of radioactive DNA and normal DNA is to heat a mixture of the two types of DNA.
Answer: Option D
<u>Explanation:</u>
Hybridization of radioactive DNA and normal DNA is a molecular biology technique that is used to analyse the similarities between the radioactive DNA and normal DNA for scientific purpose.
The first step involved in this hybridization process is heating of the two DNA at higher temperature and this heating process is known as DNA melting. This is usually preferred as a method to determine the genetic distance between two organisms.
Answer:
10. e - unit of structure & function in organisms.
11. c - existing cells.
Not necessarily because cells them self don't actually contain cells
Supose the material of the skillet is iron.
The specific heat constant for iron is:
Since the unit of measurement for the specific heat constant is Joules per kilogram Kelvin, we transform the temperatures from degrees Celsius to degrees Kelvin:
T1 = 12 °C = 273.15 + 12 = 285.15 K
T2 = 84 °C = 273.15 + 84 = 357.15 K
We also convert the mass from grams to kilograms:
m = 46 g = 0.046 kg
The amount of heat absorbed by the skillet is:
Replacing the above values, we get:
The answer is 1557 J (joules) or 1.557 kJ (kilojoules).
If the material is aluminium, use the specific heat of aluminium in your calculation, which is:
RNA plays central role in the pathway from DNA to proteins.