Ribonucleic acid, the basic unit of RNA, has a hydroxyl (-OH) on the second carbon atom. On the other hand, the deoxyribonucleic acid, the basic unit of DNA, has a single hydrogen in the second carbon. This chemical structure difference makes RNA heavier than DNA due to the extra carbon atom.
The RNA/RNA-DNA hybrids can be separated from double-standard DNA using a high-resolution centrifuge due to this difference in weight. The image belows shows the extra oxygen atom in the 2' carbon
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A(n) endotherm is able to maintain an internal body temperature. Experiment is an activity many famous historical biologists DID NOT participate in. False; Experiment is an activity many famous historical biologists DID participate in.
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The term 'colo' means large intestine and the term 'scopy' means observing things with an instrument. Hence, the term coloscopy would mean the endoscopic observation of the large intestine. An CCD camera or a fibre-optic camera are the instruments that are used for this procedure. Coloscopy is generally termed as colonoscopy.
The method of colonoscopy is effective to diagnose a wide number of toxic diseases of the large intestine. Colon cancer can also be screened through this technique.
No , blood of donor is not suitable for donation. Blood clots in blood may indicates that the donor is suffering from a disease.
All apply EXCEPT cells prevent infection