3.
in dna replication, the leading strand

is formed in a continuous sequence because dna polymerase produces strands in a 5’ to 3’ direction

uses fragments connected by ligase to form a new strand of dna because the dna clamp cannot hold the dna polymerase in place

is replicated in a discontinuous fashion because dna polymerase produces strands in a 3’ to 5’ direction

does not require any dna polymerase enzymes to form a new strand of dna

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal responds by in order to its core temperature?