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Subjects
Science State Board
Class 10
Genetics
Structure of chromosomes and DNA replication
12.
Nucleotide
Exercise condition:
3
m.
Choose the correct relationship for column A for the words given in column B:
Column A
Column B
_________ polynucleotide chains make up the DNA molecule.
Ten
Five
Two
Three
The nitrogenous bases purine and pyrimidine are joined together by ______ bonds.
Nitrogen
Hydrogen
Oxygen
Sulphide
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