A Particular Haploid Strain of Yeast Contains a Temperature-Sensitive Mutation

question 39

Multiple Choice

A particular haploid strain of yeast contains a temperature-sensitive mutation in its cdc2 gene resulting in no functional Cdc2 protein at the nonpermissive temperature.At the nonpermissive temperature,each of the following events would fail to occur at the appropriate cell cycle stage except

• A)replication of DNA.
• B)fragmentation of the nuclear envelope.
• C)condensation of chromosomes.
• D)appearance of the mitotic spindle.
• E)prevention of fusion of chromosome ends.

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Definitions:

Axon

A long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body to other neurons, muscles, or glands.

Dendrites

The branched extensions of a neuron that receive signals from other neurons and convey them toward the cell body.

Neuronal Structures

The complex anatomy and morphology of neurons, including dendrites, axons, and synapses, which are essential for process and transmit information throughout the nervous system.

Axons

Long, slender projections of nerve cells, or neurons, that typically conduct electrical impulses away from the neuron's cell body.