Short Answer TypeThe two strands in DNA are not identical but are complimentary. Explain.
(i) DNA has double helical structure in which two strands are twisted about each other held in position by H-bonds between the bases.
(ii) The two bases guanine and cytosine are complementary bases of DNA. Similarly, adenine and thymine are also complementary bases of DNA.
iii) If one of these bases is located on one chain of DNA, its complementary base is hydrogen bonded to it on the other chain. This means that the guanine base present on one chain of DNA is hydrogen bonded to its complementary base, cytosine present on the other chain. Similarly, adenine is hydrogen bonded to thymine on the other chain.
Long Answer TypeShort Answer TypeWhat are the different types of RNA found in the cells of organisms? State the functions of each type.
Long Answer TypeName the deficiency diseases caused due to lack of the vitamin A, C, E, B1, B12 B6and K.
Short Answer Type
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