Which enzyme is responsible for assembling the dna during replication

DNA POLYMERASE

Explanation:

DNA replication is an important phenomenon for any cell that wants to undergo division. It is the doubling of the DNA content in a cell. It occurs in the Synthesis phase of the Interphase stage. Majorly, DNA strands are separated from each other and nucleotides are added to each separated strand.

DNA polymerase, one of the enzymes involved in DNA replication and unarguably the enzyme that plays the major role, binds to each single strand and adds nucleotides complementary to the ones on the original strand, to eventually form the double-stranded replicated DNA molecule.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.