Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Nat5 life on earth

Nat5 Mutations

What are mutations? random change to DNA BASES /genetic information.
How do mutations occur? Mutations occur randomly and at low frequency.
What are the three possible consecquence of mutation? Mutations can be disadvantageous (genetic disease), advantageous or neither.
What is Down syndrome? Down syndrome is a condition caused by an individual having 3 copies of chromosome 21.
Name a medical condition that is caused by genetic mutations Cancer
What is an allele? A version of a gene (e.g. blue eyes or brown eyes)
What is the only process leads to new alleles being created? Mutation
New alleles lead to an increase or decrease in biodiversity increase in biodiversity
Advantageous mutations are more or less common than disadvantageous mutations advantageous mutations are less common
Advantageous mutations can get established in a population by natural selection.
What are adaptations? Features that organisms have, occurring often after a mutation that increase their chance of survival.
What are the types of adaptation? Structural (e.g. snail shell) OR Behavioural (e.g. fox is nocturnal)
What are mutagenic agents? Agents that increase the likelihood of a mutation occurring
Name 4 examples of mutagenic agent? Radiation, mustard gas, UV light & high temperatures.
Created by: dr.prorocic