When dna is heated to 95 c,
a. the phosphodiester bonds of the dna breaks.
b. strand separation of the double stranded dna occurs.
c. amplification of the target dna occurs.
d. taq polymerase synthesizes dna by extending the primers.
e. primers anneal to dna strands.

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.