WorksheetsGenetic Mutations
Total questions: 8
Worksheet time: 4mins
In the video, Tim says that genetic mutations are permanent changes to DNA or RNA. What does this mean?
The changes are minor
The changes can't be undone.
The changes are major.
The changes can be undone.
Which of the following traits is encoded in your DNA? (Choose the best answer)
Your personality
Your likes and dislikes
Your intelligence
Your eye color
What types of living organisms have NO genetic material at all?
Insects
Bacteria
Plants
All living organisms have genetic material
Why do most changes to DNA have NO effect at all?
Because they're too minor to have any effect
Because the changes are offset by RNA, which cannot change
Because the changes are quickly repaired
Because the changes only occur in a few cells
What usually happens to a cell whose DNA has been damaged?
It has trouble manufacturing certain proteins
Its genetic material leaves the nucleus
It is able to produce twice as many proteins as a normal cell
It shrinks to half its normal size
How are cancerous cells different from normal cells?
Cancerous cells are shaped differently than normal cells
Cancerous cells divide more frequently than normal cells
Cancerous cells contain chemicals not found in normal cells
Cancerous cells need more oxygen than normal cells
Which of the following is an example of a beneficial mutation?
When an organism's lifespan becomes shorter.
When an organism becomes unable to reproduce.
When an organism's body becomes deformed.
When an organism develops immunity to a disease.
When a beneficial (adaptive) mutation spreads through an entire population of organisms, that population:
Becomes less common
Becomes more common
Goes extinct
Keeps mutating
