Which process describes the function of the category of enzymes known as DNA polymerases?
A. Add new nucleotides to a strand and repair any errors
B. Unwind the double helix of DNA
C. Separate the complementary strands of DNA
D. Bond together groups of nucleotides on the lagging strand

The process that describes the function of DNA polymerase is add new nucleotides to a strand and repair any errors (option A).

Explanation:

In the context of DNA replication, a complementary strand must be formed using an existing strand as a mold. This replication process is facilitated by the enzyme DNA polymerase, which is responsible for binding complementary nucleotides to the new strand, following the sequence of the original strand.

Additionally, this polymerase can correct or repair any error in the base sequence —together with its exonuclease activity— guaranteeing the integrity of the genetic information contained in the DNA and avoiding possible mutations.

The other options are not correct because:

    B. Unwinding the DNA double helix or separating the complementary DNA strands is done by the enzymes topoisomerases and heliases.

    D. Bonding together groups of nucleotides on the lagging strand is done by ligase enzymes.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.