Michigan Test for Teacher Certification (MTTC) Secondary Integrated Science Practice test

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Prepare for the Michigan Test for Teacher Certification (MTTC) Secondary Integrated Science exam. Utilize flashcards and multiple-choice questions with hints and explanations to succeed in your certification.

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What is chromatin?

Tightly coiled chromosomes
Loose form of DNA present when the cell is not dividing
Cells undergoing division
Structure that separates during anaphase

The correct answer is: Loose form of DNA present when the cell is not dividing

Chromatin refers to the loose and uncoiled form of DNA that is present in the nucleus of a cell when it is not undergoing division. This relaxed state allows the genetic material to be accessible for processes such as transcription and replication, which are essential for gene expression and DNA replication. During the cell cycle, when the cell prepares to divide, chromatin condenses to form tightly coiled structures known as chromosomes. This organization is crucial for ensuring that DNA is accurately distributed to daughter cells during cell division. The other choices pertain to aspects of cellular structure and processes relevant to cell division but do not accurately reflect the definition of chromatin in its typical form during interphase.