Diatoms and Some Yeasts Are Unicellular Eukaryotes That Have Mechanisms

question 40

Multiple Choice

Diatoms and some yeasts are unicellular eukaryotes that have mechanisms of nuclear division that may resemble intermediate steps in the evolution of mitosis.Which of the following is a characteristic feature of nuclear division in these organisms?

• A)They have circular chromosomes that are segregated by attachment to the plasma membrane.
• B)They have circular chromosomes that are segregated by attachment to spindle microtubules.
• C)Chromosomes are not condensed during nuclear division.
• D)The nuclear envelope remains intact during division.

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Definitions:

Before and After Treatment

A research design comparing outcomes before and after a treatment or intervention to assess its effectiveness.

Null Hypothesis

A statement or hypothesis that asserts there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.

µ

The population mean, representing the average value of a given population.

α

Denotes the level of significance in hypothesis testing, representing the probability of rejecting the null hypothesis when it is true.