SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following units are repeatedly joined together to form a strand of DNA?
A
amino acids
B
nucleotides
C
fatty acids
D
polysaccharides
Explanation: 

Detailed explanation-1: -DNA or Deoxyribose Nucleic Acid is made up of three simple chemical groups repeated millions of times. These three chemical groups; phosphate, sugar and base (or nitrogenous base) together form the simple, repeated unit of DNA; a nucleotide.

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