What structure forms a ring around the membrane pinching the cell into two separate cells?
a. myosin
b. microfilaments
c. troponin
d. histones
e. chromatin
ANSWER: b
You might also like to view...
Evaporation of sweat helps ____ a(n) ____ body temperature
a. lower; depressed b. raise; depressed c. lower; elevated d. raise; elevated e. maintain; average
What happens to neurons in the approach known as optogenetics?
A) Mutations to ion channel proteins are corrected. B) The neurons are made to express light-sensitive ion channels. C) Neurotransmitter stores are depleted. D) Fusion of neurotransmitter vesicles to the presynaptic membrane is blocked. E) Leakage of cytoplasmic polyanions is blocked.
A balloon permeable to water but not to glucose contains a 10% glucose solution. A beaker contains a 5% glucose solution. What will happen when the balloon is submerged in the beaker?
A) The volume of water in the beaker will decrease. B) The volume of water in the beaker will increase. C) The amount of glucose in the beaker will increase. D) The amount of glucose in the beaker will decrease.
Which of the following results of a test-cross between a pigmented alligator (M_) and an albino alligator (mm) would indicate that the pigmented parent is heterozygous?
a. Getting three offspring that are pigmented b. Getting six offspring that are pigmented c. Getting even a single albino offspring d. Both choices A and B are true. e. None of the above