Paramecia Contain Two Types of Nuclei: a Large Macronucleus and Usually

question 52

Multiple Choice

Paramecia contain two types of nuclei: a large macronucleus and usually several micronuclei.The micronuclei are typical eukaryotic nuclei,essential for genetic recombination.The macronucleus

• A) is important in sexual recombination (conjugation).
• B) contains several micronuclei.
• C) contains DNA that is not transcribed.
• D) contains many copies of the genetic information.
• E) contains DNA that is transcribed but not translated.

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Definitions:

Chi-Squared Test

A statistical method employed to assess if the observed frequencies significantly differ from the expected frequencies across one or more categories.

Nominal Data

A type of categorical data for which the categories do not have a natural order or ranking.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it depends on the chosen significance level.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true, usually set before the experiment.