Exploring Genes and Mutations

The video tutorial explores the concept of genes and mutations, explaining how traits are inherited through DNA. It covers the structure of DNA, the role of proteins, and the impact of mutations, using examples like hairless cats and cookie recipes. The tutorial also highlights careers in genetics and demonstrates a DNA extraction activity with strawberries.

What does DNA stand for?

• Dioxyribonucleic acid

• Dioxyribosenucleic acid

• Deoxysribonucleic acid

• Deoxyribonucleic acid

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How many chromosomes do humans have from each parent?

• 23

• 46

• 22

• 24

How is DNA organized in human cells?

• Into hundreds of chromosomes

• Into 46 chromosomes

• Into a single chromosome

• Into 23 chromosomes

What is the shape of DNA?

• Circular

• Double helix

• Single strand

• Triple helix

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What is the role of proteins in cells?

• Protect the cell from damage

• Provide energy

• Carry out cellular functions

• Store genetic information

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What can mutations in DNA lead to?

• Changes in protein function

• All of the above

• No change at all

• Both beneficial and harmful effects

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What is a common mutation that can be beneficial?

• Mutation causing resistance to malaria

• Mutation causing sickle cell anemia

• Mutation causing increased salt in cookies

• Mutation causing hairlessness in cats

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What does a mutation in a DNA recipe demonstrate?

• Changes in taste

• All of the above

• No noticeable effect

• Can be harmful

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What is the result of a mutation that changes the 20th letter in the hemoglobin gene from A to T?

• Improves oxygen transport

• Causes sickle cell anemia

• Resistance to malaria

• No effect

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What careers involve working with DNA?

• Virologist

• Both A and B

• Forensic scientist

• Genetic counselor

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