In the Tryptophan Operon, the Repressor Actively Binds to the Operator

question 66

Multiple Choice

In the tryptophan operon, the repressor actively binds to the operator when:

• A) tryptophan binds to an allosteric site on the repressor protein, thereby activating it.
• B) tryptophan levels are low.
• C) lactose levels are low.
• D) there is a great need for proteins.
• E) allotryptophan levels are low.

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Definitions:

Kruskal-Wallis Test

A nonparametric statistical test used to compare three or more groups on a continuous or ordinal outcome without assuming a normal distribution among the groups.

Crawling Ages

Typically refers to the developmental period in human infants when they start to move about on their hands and knees, usually between 6 to 10 months of age.

Null Hypothesis

A hypothesis that suggests there is no statistical significance between the two observed phenomena.

H Statistic

A measure of statistical significance in the Kruskal-Wallis H test, used to determine if there are differences between two or more groups of an independent variable on a continuous or ordinal dependent variable.