The scope of pharmacognosy is broad in the field of pharmacy, The origin is derived from two Greek words: pharmakon, and gnosis (knowledge). Pharmacognosy forms an important part of pharmaceutical research and development.
Answer:
I believe it is D. Please correct me if i am wrong.
Explanation:
Hope my answer helps. Have a great day.
You know this! Let me walk you through! First, define a trophic level.
The answer is B, because only plants have chloroplasts (which they use for photosynthesis) and cell walls (which protects and supports the plant cell)
The sulphur would lable the capsule and the phosphorous the nucleic acid.
<h3><u>Explanation</u>:</h3>
Hershey and Chase experiment included growing of the pages in two batches, one in presence of 35S and other in presence of 32P. They then infected bacterial cells with these phages, cleaned them and then centrifuge the cells to isolate the marked elements in bacterial cells.
This was done to isolate which part of the phage is actually infective. Sulphur being a part of the proteins will mark the capsule whereas DNA having the phosphate bridges will be marked by 32P.