Which of the following correctly describes nucleic acid synthesis? which of the following correctly describes nucleic acid synthesis?
a. complementary pairing between sugars is required for copying nucleic acids.
b. polymerization of nucleic acids occurs by the formation of phosphodiester bonds.
c. strands in a double helix are synthesized in a parallel orientation.
d. ribonucleotides are added to the 3' end of a dna strand. item 7

B

Explanation:

A nucleic acid monomer is made up of a 5’ carbon cyclic sugar. A nitrogenous base is attached to its 2’ carbon  and a phosphate molecule at its 5’ carbon. When forming a chain with its adjacent monomer there occurs a condensation reaction between the -OH of the 1’C and one -O of the phosphate molecule of the next monomer - forming a phosphodiester bond.  This continued, forms a polymer of nucleic acids called DNA.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.