Motor proteins require which of the following to function in the movement of chromosomes toward the poles of the mitotic spindle?
A) intact centromeres
B) a microtubule-organizing center
C) ATP as an energy source
D) synthesis of cohesin
C
You might also like to view...
How many checkpoints occur during interphase prior to a cell entering mitosis?
a. one b. two c. three d. four
The thermal capacity of water is due to the strong covalent bonds between the hydrogen and oxygen of a water molecule
Indicate whether the statement is true or false
According to most car mechanics, plain water is the best coolant to use in an engine provided the engine is not being exposed to freezing temperatures. If the car is subject to freezing temperatures then a mixture of water and ethylene glycol (antifreeze) is recommended but it does not cool as efficiently as plain water. Why would ethylene glycol reduce the cooling efficiency of water?
A. Ethylene glycol has a higher heat capacity than water. B. Ethylene glycol raises the freezing point of water. C. Ethylene glycol has a lower heat capacity than water. D. Hydrogen bonds in water allow high levels of heat absorption and a large increase in temperature.
The greatest proportion of which two biomes have been converted to agriculture?
a. taiga and tropical rain forest b. tropical rain forest and temperate rain forest c. temperate deciduous forest and temperate grassland d. chaparral and tropical rain forest e. temperate grassland and savanna