In the cell cycle, when does DNA replication occur? correct answers During S of interphase
semi-conservative replication correct answers in each new DNA double helix, one strand is
from the original molecule, and one strand is new
centromere correct answers duplicated DNA molecules remain attached at the .....
sister chromatids correct answers after synthesis is complete, duplicated molecules are
referred to as.....
One Chromosome correct answers In eukaryotes, each DNA molecule corresponds to
Each DNA molecule in a human contains somewhere between ....... and ....... base pairs
correct answers 50 - 250 million
hydrogen bonds role in DNA correct answers In DNA, base pairs are held together with....
anti-parallel strands correct answers 3' end of one strand of DNA aligns with 5' end of the
complementary strand
complementary strands of DNA correct answers In the structure of DNA, the nitrogenous
base pairing enables existing DNA strands to provide a template for new
DNA helicase correct answers An enzyme that unwinds the DNA double helix during DNA
replication
replication bubble correct answers a region of DNA where helicase has unwound the double
helix
origin of replication correct answers Site where the replication of a DNA molecule begins,
usually shown at the center of a replication bubble
RNA primer correct answers short piece of RNA needed for DNA polymerase to start
RNA polymerase role in DNA replication correct answers puts down the short RNA primer
so that DNA polymerase has something to start from
DNA polymerase correct answers Enzyme involved in DNA replication that joins individual
nucleotides to produce a DNA molecule
continuous strand (leading strand) correct answers section of the DNA that can be replicated
from one RNA primer while moving toward the helicase that is unwinding more DNA
lagging strand correct answers The strand that is synthesized in fragments using individual
sections called Okazaki fragments
Okazaki fragments correct answers Small fragments of DNA produced on the lagging strand
during DNA replication, joined later by DNA ligase to form a complete strand.