A Researcher Uses a Manipulated Independent Variable in Her Experiment

question 21

Multiple Choice

A researcher uses a manipulated independent variable in her experiment. This means she

• A) conducts her research in a laboratory.
• B) uses comparison groups.
• C) makes her prediction before conducting the study.
• D) randomly assigns participants to conditions.

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Definitions:

Metaphase

A stage during cell division (mitosis and meiosis) where chromosomes align at the equatorial plate of the cell, preparing for segregation into two new nuclei.

Interphase

The phase of the cell cycle in which the cell prepares for division, characterized by DNA replication and growth.

G₁

The first gap phase or growth phase in the cell cycle where a cell increases in size and synthesizes proteins and organelles.

S Phase

S Phase is the phase of the cell cycle in which DNA replication occurs, preparing the cell for division.