DNA Is Called a Double Helix Because

question 123

Multiple Choice

DNA is called a double helix because

• A) two bases are the rungs.
• B) the bases are complementary paired.
• C) two DNA strands twist together.
• D) one DNA strand binds to a sugar.
• E) a DNA strand folds into an alpha helix.

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Definitions:

Factorial Design

A research design that involves investigating the effects of multiple variables at the same time to determine their individual and combined effects on the outcome.

Independent Groups Design

A study setup where separate groups are tested under each condition or treatment, ensuring no participant experiences more than one condition.

Participants

Individuals who take part in a research study or experiment.

Gender × Type of School Interaction

The interactive effect that gender and the type of school (e.g., co-ed or single-gender) have on a particular outcome.