Brainpop Genetics

How many PAIRS of chromosomes exist in your cells?

• 22

• 23

• 44

• 45

All _____ have DNA

• solid objects

• human cells

• living organisms

• chemical compounds

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How is DNA similar to a fingerprint?

• Both are unique to an individual.

• Both have a double helix shape

• Both are found in the nucleus of every cell in the body.

• Both determine physical traits such as height and eye color.

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Chromosomes are found in the ____ of almost all cells in our bodies.

• cell membrane

• ribosomes

• nucleus

• vacuoles

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Analyze the Punnett Square. What percentage of the offspring will have the DOMINANT trait expressed?

• 0%

• 25%

• 50%

• 100%

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Besides genetics, what other factors are responsible for how you will grow and develop?

• nutrition

• environment

• amount of exercise

• medical care

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What is heredity?

• A kind of genetic disorder

• The way DNA divides

• The passing down of traits from parents to children.

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What is the relationship between DNA and chromosomes?

• Chromosomes are made out of DNA.

• DNA is made out of chromosomes.

• DNA and chromosomes are the same thing.

• DNA forces chromosomes to mutate.

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How many pairs of chromosomes exist in each cell.

• 10

• 12

• 19

• 23

Why are your chromosomes arranged in pairs.

• Scientists aren't sure.

• Because you get one from your mother and one from your father.

• Because pairs are able to divide more easily.

• Because DNA is a double helix structure.

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