McGraw Hill Biology Chapter 9

____________ is the stage of the cell cycle in which the cell grows, carries out cellular functions, and replicates (makes copies of ) its DNA to prepare for the next stage of the cell cycle.

• M1

• G

• Interphase

• M2

___________________ are structures that contain identical DNA (HINT: They are half of the "X" of chromosomes).

• sister chromatid

• chromatin

• centromere

• chromosome

Which structure is responsible for organizing the microtubules during cell division?

• Centrosome

• Chromosome

• Ribosome

• Nucleolus

Substances and agents known to cause cancer are called _______________

• Cancer-Causing Agents

• Cyclins

• Carcinogens

• Cancerous Material

___________ is the stage of the cell cycle during which the cell's nucleus and nuclear material divide.

• Mitosis

• G2

• Meiosis

• G1

Proteins called ___________ bind to cyclin-dependent kinases (CDKs) during interphase and mitosis to start the activities that take place during these areas of the cell cycle.

• Kinase

• Cyclin

• Carcinogens

• Leptin

The third phase of mitosis, in which the spindle fibers pull apart the chromatids, is called ____________________.

• Prophase

• Metaphase

• Anaphase

• Telophase

_____________ is the relaxed form of DNA inside of the cell's nucleus

• Chromosomes

• Nucleotides

• Amino Acids

• Chromatin

______________ is the process by which the cell's cytoplasm divides.

• Cytokinesis

• Telekinesis

• Mitosis

• Prophase

The second stage of mitosis, in which the chromosomes line up in the center of the cell, is called _____________.

• Prophase

• Metaphase

• Anaphase

• Telophase