Is dark, highly decomposed organic matter found in soil.

Biology

2 answers:

ira [324]3 years ago

7 0

Answer:

Yes

Explanation:

marissa [1.9K]3 years ago

4 0

Yes, the highly decomposed organic matter soil is darker.

<u>Explanation</u>:

The color of the soil is obtained due to the presence of minerals and organic matter in the soil. The highly decomposed soil looks dark because the organic matter turns to black when it reaches to the final stage that is called humus. Humus (decomposed organic matter) is dark in color due to the presence of the sodium in the organic matter. Sodium readily covers over the soil and it makes soil to look darker in color. Thus the "highly decomposed organic matter" in the soil looks darker.

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Hershey and Chase used radioactive isotopes to label different parts of the phage. They grew one batch of phage in the presence

AlekseyPX

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.