Cell Division

The point on the chromosome where the two chromatids are held together is the

• centromere
• centriole
• chromosome
• chromatid

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NGSS.HS-LS1-4

Contains the genetic material and serves as the control center of the cell

• nuclear membrane
• spindle fibers
• nucleus
• telophase

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NGSS.MS-LS1-2

Chromosomes are made up of two identical sister _____________.

• chloroplasts
• nuclei
• chromatids 
• gens

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NGSS.HS-LS1-4

What is the result of mitosis?

• 1 cell
• 2 genetically identical cells
• 2 genetically different cells
• 4 genetically identical cells

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NGSS.HS-LS1-4

There are a TOTAL of ___ chromosomes in human body cells.

• 23
• 46
• 92
• scientists don't know

This picture shows which process? 

• mitosis
• meiosis
• the cell cycle

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NGSS.HS-LS1-4

Each daughter cell ends up with the ____ number of _______ as the ________ in mitosis.

• chromosomes, parent cel, same

• parent cell, same, chromosomes

• same, daughter cell, chromosomes

• same, chromosomes, parent cell

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NGSS.HS-LS1-4

Why do cells divide?

• To copy and divide

• To repair

• To replace

• All the above

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NGSS.HS-LS1-4

This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?

• segregation of sister chromatids
• condensation and segregation of alleles
• mutationin which the DNA content of the gene is altered
• crossing - over in which alleles are exchanged

The end of meiosis results in  ____ to each other.

• 2 cells that are identical
• 4 cells that are identical
• 2 cells that are not identical
• 4 cells that are not identical

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NGSS.HS-LS3-2