Bc they need help and they want it too keep going
Answer:
reverse transcriptases.
Explanation:
Reverse transcriptase is an enzyme that makes DNA copies of the RNA template. To make the libraries of the genes that are expressed, the enzyme reverse transcriptase is used. The researcher first extracts mRNA from the cells of target organisms and then uses the enzyme reverse transcriptase to prepare complementary DNAs which are also called cDNAs. The enzyme reverse transcriptase add dNTPs to make a complementary DNA strands.
<span>1. Shield Volcano - A shield volcano is given its name due to the fact that they develope a very broad shield like appearance.
2. Stratovolcanoes - This type of volcano is seen world wide and is often times made up of mixtures of different types of magma.
</span><span>3. Caldera - These types of volcanoes are rather rare, and often times erupt extremely infrequently.
</span>#BELIEVE