OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
| Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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 Which portion of the DNA molecule varies from nucleotide to nucleotide and thus serves as the portion of the nucleotide which codes for amino acid sequences? 
|  |  phosphate sugar 
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|  |  ribose sugar 
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|  |  nitrogenous bases 
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|  |  hydrogen bonds 
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 Explanation: 
Detailed explanation-1: -Hence, the correct answer is ‘Nitrogenous bases’.
Detailed explanation-2: -Each DNA sequence that contains instructions to make a protein is known as a gene.
Detailed explanation-3: -The part that makes each nucleotide unit different is its nitrogenous base. DNA nucleotide. Wikipedia.
 There is 1 question to complete.