Changes to Chromosome Structure and Function

How many DNA molecules make up a chromosome?

• 1
• 2
• 23
• 46

Each identical side of a chromosome is the 

• centromere
• chromatin
• centriole
• chromatid

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The individual strands on duplicated chromosomes are called_____________

• Centromeres
• Daughters
• Chromatids
• Karyotypes

The structures labeled B are

• centrioles
• chromatids
• centromeres
• chromopheres

The structure labeled A is a(n)

• chromatid
• centriole
• centromere
• chromophere

Histones are 

• proteins wound up in DNA
• critical to maintaining the shape of chromosomes
• aid in the tight packing of DNA
• all of these 

When DNA is in its less coiled, "relaxed," state, between cell divisions, it is called

• autosomes
• chromatid
• chromatin
• centromere

The life cycle of a cell is called

• mitosis
• meiosis
• the cell cycle
• the cell life span

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DNA is inside your cells. What part of the cell is the DNA inside of?

• cell membrane
• cytoplasm
• nucleus

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The drawing shows the structure of what molecule?

• A DNA molecule
• A lipid molecule
• A carbohydrate molecule
• A protein molecule

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