BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The 5ʹ end has a hydroxyl group attached to the number 5 carbon of ribose
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The 5ʹ end has a phosphate group attached to the number 5 carbon of ribose
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The 5ʹ end has thymine attached to the number 5 carbon of ribose
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The 5ʹ end has a carboxyl group attached to the number 5 carbon of ribose
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Detailed explanation-1: -Answer B) The 5’ end has a phosphate group attached to the number 5 carb…
Detailed explanation-2: -Which of the following statements about the 5’ end of a polynucleotide strand of RNA is correct? The 5’ end has a phosphate group attached to the number 5 carbon of ribose.
Detailed explanation-3: -The 5′-end (pronounced “five prime end") designates the end of the DNA or RNA strand that has the fifth carbon in the sugar-ring of the deoxyribose or ribose at its terminus.
Detailed explanation-4: -Each end of DNA molecule has a number. One end is referred to as 5’ (five prime) and the other end is referred to as 3’ (three prime). The 5’ and 3’ designations refer to the number of carbon atom in a deoxyribose sugar molecule to which a phosphate group bonds.
Detailed explanation-5: -The chain has a free phosphate group at 5′ end of pentose sugar which is called as 5′ end of polynucleotide chain. Similarly, at another end the 3′OH group is pentose sugar is free which is referred to as 3′ end of the polynucleotide chain.