Answer:
the deliberate modification of the characteristics of an organism by manipulating its genetic material.
Explanation:
The first cells were identified in a cork bark.
Answer:
cDNA libraries
Explanation:
cDNA libraries represent expressed genes from specific cell types under specific conditions.
It is C. He said that they where formed in layers.
Answer:
they are needed for activation energy.
Explanation:
If they are needed for activation energy. Just like you don't say chloroplasts are a reactant in photosynthesis.