Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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

4.1 Science Vocab.

heredity the passing of physical characteristics from parents to offspring
trait each different form of a characteristic
genetics the scientific study of heredity
fertilization a new organism begins to form when egg and sperm join
purebred the offspring of many generations that have the same trait
gene the factors that control a trait
alleles the different forms of a gene
dominant allele one whose trait always shows up in the organism when the allele is present
recessive allele hidden whenever the dominant allele is present
hybrid organism that has two different alleles for a trait
Created by: S730503