BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydrogen bonds hold the sugar and phosphate components together.
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Hydrogen bonds are found in the deoxyribose sugar.
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Hydrogen bonds hold the parallel polynucleotide chains.
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Hydrogen bonds play an important role in the transcription of RNA.
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Detailed explanation-1: -Hydrogen bonding in DNA The complementary base pairs of guanine with cytosine and adenine with thymine connect to one another using hydrogen bonds. These hydrogen bonds between complementary nucleotides are what keeps the two strands of a DNA helix together.
Detailed explanation-2: -Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs.
Detailed explanation-3: -The two polynucleotide chains are antiparallel in DNA. This means that one of them runs from the 5’-3’ direction and the other one runs in the 3’-5’ direction.
Detailed explanation-4: -Base Pair The two strands are held together by hydrogen bonds between pairs of bases: adenine pairs with thymine, and cytosine pairs with guanine.