Answer:
The answer is C.
Explanation:
The example process given in the question is describing the creating of a cDNA Library. cDNA or Complimentary DNA is copy of the DNA that is taken from a messenger RNA (mRNA), which is what is done with the reverse transcriptase. And the process described as cloning the resulting DNA into plasmids is the part where the library is created. The resulting DNA is put into host organisms and stored there for further investigation or use.
I hope this answer helps.
Answer:
The nitrogen gas must be changed to a form called nitrates, which plants can absorb through their roots. The process of changing nitrogen gas to nitrates is called nitrogen fixation. It is carried out by nitrogen-fixing bacteria. The bacteria live in soil and roots of legumes, such as peas.
Answer:
They refer to one species or individual.
Answer: The correct answer is option B
Explanation:
The correct hierarchy level is
Organelles-cells-tissue-organ-organ system-organism-population-community-ecosystem-biosphere.
Community refers to the group of populations of two or more species located in the specific area. Thus, populations exist within community which exist within ecosystem.
Thus, option B is incorrect.
