The 3′-5′ phosphodiester linkages in a polynucleotide chain join:
Correct answer: C. One nucleotide with another nucleotide
- A. One DNA strand with another
- B. One nucleoside with another
- C. One nucleotide with another nucleotide
- D. One nitrogenous base with a pentose sugar
Explanation
Phosphodiester bonds connect 3′-OH of one sugar with 5′ phosphate of next nucleotide, forming the DNA backbone.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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