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

U4 - Genetics

Reproduction and Genetics

genetics the study of heredity, or passing on of traits from an organism to its offspring
Gregor Mendel the Father of Genetics - he experimented with pea plants to learn how traits are passed on
trait a behavioral or physical characteristic of an organism that are expressed by genes and/or influenced by the environment
offspring the new organism that is produced by a parent organism
heredity the passing of genetic information from generation to generation
gene a unit of heredity; a portion of DNA on a chromosome that contains certain traits
DNA (deoxyribonucleic acid) a chemical found on a chromosome that contains genes
dominant describes a trait that dominates, or covers over, another form of that trait
capital letter represents a dominant trait
recessive describes a trait that is covered over by a dominant trait
lower case letter represents a recessive trait
chromosome rod shaped structures found in the nucleus of every cell that contains DNA
23 the number of pairs of chromosomes in the nucleus of human cells
46 the total number of chromosomes in the nucleus of human cells
genotype the written letters that describe the physical appearance of an organism
2 the number of letters that make up a genotype - TT, Tt, tt
phenotype the words that describe the physical appearance - tall, short
diverse offspring offspring that are genetically different and have different traits
uniform offspring offspring that are genetically alike and have the same traits
genetically identical exact genetic copies - all DNA is identical
heterozygous two forms or variations of a gene - Bb, Gg, Tt - one dominant and one recessive
homozygous two of the same form or variation of a gene - both dominant BB or both recessive bb
hybrid another name for heterozygous
pure (or purebred) another name for homozygous
Created by: Blackcat8765