The M checkpoint is used to determine which of the following?
a. if DNA replication has finished
b. if the chromosomes have lined up at the metaphase plate
c. if sister chromatids are attached to spindle microtubules properly
d. if adequate reserves and cell size have been reached
c. if sister chromatids are attached to spindle microtubules properly
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These are cell adhesion proteins that some cells use in the process of differentiation during development.
A. Cadherins B. Glycospheres C. Receptors D. Phospholipids
The simplest technique for isolating bacteria in growth media is referred to as the
A. pour-plate method. B. streak-plate method. C. serial dilution method. D. MPN method.
Duchenne muscular dystrophy is caused by
a. a mutation that weakens the cytoskeleton of the muscle fiber. b. a mutation that weakens myofibrils. c. a mutation in the X and Y chromosome. d. a mutation that disrupts the sarcomere. e. a mutation that increases the transmission of force.
The atomic number of sodium is 11, and the atomic mass (mass number) is 23. This indicates that one atom of sodium will contain ________.
Fill in the blank(s) with the appropriate word(s).