BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Z-DNA
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G tetraplexes
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three hydrogen bonds between A and T
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pyrimidines in the anti
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Detailed explanation-1: -Answer and Explanation: C. Complementary strands are held together by hydrogen bonds between phosphate groups. Option C is not a feature of DNA.
Detailed explanation-2: -DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases.
Detailed explanation-3: -The type of bond that holds the phosphate group to the sugar in DNA’s backbone is called a phosphodiester bond. Hydrogen bonds connect bases to one another and glycosidic bonds occur between deoxyribose groups and the base groups.
Detailed explanation-4: -1. DNA. Deoxyribonucleic acid is a polymer chain of nucleotides connected by 5’ to 3’ phosphodiester bonds. DNA normally exists as a two antiparallel complementary strands held together by hydrogen bonds between adenines (A) and thymines (T), and between guanines (G) and cytosines (C).