Explanation:
These questions are related to the extraction of DNA using detergents and ethanol.
1. Consistency and texture- the extracted DNA is white, spongy and moist or slime in nature.
2. Salt is used during the extraction process as the DNA is negatively charged molecule and to neutralize the negative charge which will allow the formation of precipitate.
3. The DNA is soluble in aqueous solution as the DNA is a negatively charged molecule therefore the negative charge makes it a polar molecule and it can form the interactions in the aqueous solution.
4. RNA could be present in the aqueous solution along with the DNA as both are the nucleic acid.
5. The base-pairing rule was suggested by the Chargaff who proposed that Adenine binds thymine and guanine binds cytosine.
5. The binding of adenine to thymine involves two hydrogen bonds and between guanine to cytosine involves three hydrogen bonds.
<span>Most of the deep carvings left in this region following the last glacial period have now turned into lakes and streams. Prior to these existing, it is believed that the water that accumulated in the area washed off to the ocean now a more extensive water way has been created, keeping more water in the area.</span>
Answer:
La fecha de inicio del otoño varía según el clima, la tradición y la cultura, pero cuando es otoño en el hemisferio norte, es primavera en el hemisferio sur, y viceversa.
Explanation:
