A phragmoplast functions to:
A. stimulate the growth of the microtubule
spindle.
B. anchor microtubules to sister chromatids.
C. breakdown the nuclear envelope.
D. form a new cell wall.
D
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Why is life based on carbon-based molecules?
A. Because carbon has unique ionic properties B. Because a single carbon can bond with up to eight other atoms C. Because a single carbon can bond with up to four other atoms D. Because carbon is found everywhere
Research conducted by G.J. Gorbsky and colleagues suggests that during anaphase, chromosomes move as a
consequence of ____.
a. a combined action of actin and microtubules b. the disassembly of kinetochore microtubules c. the movement of kinetochore microtubules d. constriction of the contractile protein actin e. sliding over or along kinetochore microtubules
The representation H?O?H is known as:
a. a structural formula. b. a simplest formula. c. a molecular formula. d. a Lewis structure. e. an orbital diagram.
Consider a virus whose genome is composed of minus (-) sense RNA (for example, the rabies virus). What would be the first step in the biosynthesis of this virus?
a. Synthesize mRNA from the - sense RNA genome b. Synthesize mRNA from a DNA template c. Synthesize DNA from the RNA template d. Synthesize proteins from the mRNA template