Answer: Like the thread, molecule of DNA is so thin, around 2 nm in length so, it cannot be seen with the naked eye. When DNA is clumped together, it is visible. To see or examine the DNA, it must be isolated from the cell and examine under microscope. Strands of DNA should be released from the nuclei of the cell and should be separated from other components such as histone protein around which it is coiled, before examining it.
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The lymphatic system primarily consists of lymphatic vessels, which are similar to the circulatory system'sveins and capillaries. The vessels are connected to lymph nodes, where thelymph is filtered. The tonsils, adenoids, spleen and thymus are all part of the lymphatic system
so kidney wouldn't be apart of it
the answer to your question should be 4.Allergens
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Is the concern general, or does in require specialized knowledge
