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


Review Genetics and Punnett Squares

Gene The different kinds of genetic information that can be found on DNA.
DNA Deoxyribonucleic acid, holds all the genetic information for organisms. Called the blueprint of life.
double helix The two stranded and twisted shape of DNA.
nucleotides The building blocks of DNA. Made up of a phosphate, deoxyribose sugar, and nitrogenous base.
nitrogenous base The middle part, or rungs, of DNA. Consists of adenine, thymine, guanine, and cytosine.
heredity The passing of genetic information from one generation to another.
trait A specific characteristic or feature in an organism.
Alleles Different forms of a specific trait.
Dominant allele Refers to the allele that masks or hides the appearance of the other allele.
Recessive allele Refers to the allele that is covered by or masked by the other allele.
homozygous When both alleles for a trait are the same.
heterozygous When both alleles for a trait are different.
Genotype The set of genes that are responsible for a specific trait.
Phenotype The physical appearance or symptoms that we notice in an organism.
Punnett Square A graphic tool used to predict all possible combinations of offspring from a set of parents.
Codominance When the dominant trait and recessive traits are seen in the phenotype of the offspring.
Incomplete Dominance When the heterozygous genotype blends the dominant and recessive phenotypes.
Created by: kdwilliams372