Cellular Reproduction

What stage of the cell cycle are cells in the longest amount of time?

• Mitosis

• Prophase

• Cytokinesis

• Interphase

The process of cellular reproduction, occuring in three main stages, interphase, mitosis, and cytokinesis is called the cell cycle.

• True

• False

The DNA-containing structure that carries genetic material from one generation to another is called the

• mitochondria

• chromosome

• centriole

• vacuole

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NGSS.HS-LS3-1

As a result of mitosis, each of the two new cells produced from the original cell during cytokinesis

• donates a chromosome to the original cell.

• receives a few chromosomes from the original cell.

• receives an exact copy of all the chromosomes present in the original cell.

• receives exactly half the chromosomes from the original cell.

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NGSS.HS-LS1-4

The relaxed form of DNA in the nucleus of a cell is called chromatin.

• True

• False

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NGSS.HS-LS1-4

The cell structure that joins two sister chromatids is called

• a centromere

• a gene

• a nucleic acid

• DNA

What is the term for programmed cell death?

• Apoptosis

• Cancer

• Meiosis

• Cyclin

What two molecules act as checkpoints to start or stop the next phase of the cell cycle?

• Chromatin and chromosomes

• Centrioles and centromeres

• Enzymes and nucleic acids

• Cyclins and CDKs

What kinds of things do cell cycle checkpoints watch out for? (check all that apply)

• Has the DNA been replicated correctly?

• Is the DNA free of mutations and ready to replicate?

• Did photosynthesis and cell respiration happen enough?

• Are the chromosomes lined up correctly?

• Has the cell grown to the right size?

Which answers go along with mitosis?

• DNA is in the form of chromosomes
• DNA is in the form of chromatin
• The cell replicates DNA
• Chromosomes line up in the center of the cell
• The nuclear membrane breaks down

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NGSS.HS-LS1-4