micro-2- copied notes

Which of the following enzymes is responsible for "unzipping" a DNA molecule in preparation for its replication? DNA ligase DNA helicase primase DNA polymerase

DNA helicase

Which statement about DNA replication is FALSE? The lagging strand is made of a series of pieces that must be joined together to make a continuous strand. DNA polymerase builds a new strand by adding DNA nucleotides one at a time. DNA ligase adds nucleotides to the lagging strand. Because the two strands of parental DNA run in opposite directions, the new strands must be made in different ways. The two strands of parental DNA are separated during DNA replication.

DNA ligase adds nucleotides to the lagging strand. 8

The molecule that seals the gaps between the pieces of DNA in the lagging strand is the leading strand. DNA ligase. DNA polymerase. the replication fork. RNA.

DNA ligase. 8

Which of the following build(s) new strands of DNA? Parental DNA The leading strand The lagging strand The origins of replication DNA polymerases

DNA polymerases 8

During DNA replication, which nucleotide will bind to an A nucleotide in the parental DNA? C A T G U

T 8

Which statement about DNA replication is CORRECT? DNA ligase helps assemble the leading strand. The lagging strand is one of the strands of parental DNA. The leading strand is one of the strands of parental DNA. The lagging strand is built continuously. The leading strand is built continuously, and the lagging strand is built in pieces.

The leading strand is built continuously, and the lagging strand is built in pieces. 8