The enzymes that unzip the hydrogen bonds of a DNA molecule in preparation for replication are _____.
A) hydrogenases
B) helicases
C) DNA polymerases
D) DNA ligases
Answer: B) helicases
You might also like to view...
Somatic sensations include all EXCEPT which one
of the following? a. heat and cold b. pressure and touch c. pain d. position of the body’s limbs e. sound
The velocity of blood flow is the lowest in capillaries because _____
A) the capillaries have internal valves that slow the flow of blood B) the diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate C) the systemic capillaries are supplied by the left ventricle, which has a lower cardiac output than the right ventricle D) the total cross-sectional area of the capillaries is greater than the total cross-sectional area of the arteries or any other part of the circulatory system
According to Thomas Malthus, food supplies tend to increase arithmetically while populations tend to increase exponentially, which means that populations will outgrow their food supply.
Answer the following statement true (T) or false (F)
Please select each of the common reservoirs of rabies listed below.
> Canines > Skunks, raccoons, and badgers > Birds > Bats > Reptiles