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.

Remove Ads
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

10 1.3 Inheritance

Genetics the study of inherited characteristics
Gregor Mendel developed the original theory of genetics.
Pure-breeding all individuals have the same genetic information eg red flowered plants only give rise to red flowered plants
Dominant the characteristic that is observed in the next generation eg 'R' for Red (dominant)
Recessive a characteristic that may remain hidden in the next generation eg 'r' for White (recessive)
Alleles variations of a gene eg for colour 'R' for Red (dominant) and 'r' for White (recessive)
Homozygous having 2 alleles exactly the SAME either RR or rr
Heterozygous having 2 different alleles MIXED either rR or Rr
Punnett square a method of representing possible outcomes from breeding
Genotype represented by the alleles eg RR, rr, or rR (ie its genes)
Phenotype the characteristic - flower colour or face (sort of rhymes at the first letter)
Incomplete dominance some genes have alleles that neither dominate or are recessive, they blend, which makes the offspring different from both of its parents. Red + White = Pink
Sex-linked genes some genes are only found on the X and Y genes - colour blindness is only found on the X chromosome. Haemophilia is also sex linked.
Mutation mistakes do occur in the copying of DNA either due to chance, UV radiation, nuclear radiation, nicotine or many other causes. If this mistake occurs in the egg or the sperm then the mutation may be passed onto the next generation.
Co-Dominance Both alleles are expressed equally. Red + White = Red and White Spots
Created by: camwust